changeset 28839:627c26f2e54b

Merge
author jwilhelm
date Thu, 05 Feb 2015 12:23:29 +0100
parents da47c3cc5c98 a8c81ce8d333
children 759e09099cd7
files hotspot/src/share/vm/runtime/vmStructs.cpp hotspot/test/TEST.groups hotspot/test/serviceability/dcmd/ClassLoaderStatsTest.java hotspot/test/serviceability/dcmd/DcmdUtil.java hotspot/test/serviceability/dcmd/DynLibDcmdTest.java
diffstat 47 files changed, 3236 insertions(+), 493 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/memory/SymbolTable.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/memory/SymbolTable.java	Thu Feb 05 12:23:29 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -44,15 +44,22 @@
   private static synchronized void initialize(TypeDataBase db) {
     Type type = db.lookupType("SymbolTable");
     theTableField  = type.getAddressField("_the_table");
+    sharedTableField = type.getAddressField("_shared_table");
   }
 
   // Fields
   private static AddressField theTableField;
+  private static AddressField sharedTableField;
+
+  private CompactHashTable sharedTable;
 
   // Accessors
   public static SymbolTable getTheTable() {
     Address tmp = theTableField.getValue();
-    return (SymbolTable) VMObjectFactory.newObject(SymbolTable.class, tmp);
+    SymbolTable table = (SymbolTable) VMObjectFactory.newObject(SymbolTable.class, tmp);
+    Address shared = sharedTableField.getStaticFieldAddress();
+    table.sharedTable = (CompactHashTable)VMObjectFactory.newObject(CompactHashTable.class, shared);
+    return table;
   }
 
   public SymbolTable(Address addr) {
@@ -73,8 +80,9 @@
 
   /** Clone of VM's "temporary" probe routine, as the SA currently
       does not support mutation so lookup() would have no effect
-      anyway. Returns null if the given string is not in the symbol
-      table. */
+      anyway. Searches the regular symbol table and the shared symbol
+      table. Null is returned if the given name is not found in both
+      tables. */
   public Symbol probe(byte[] name) {
     long hashValue = hashSymbol(name);
     for (HashtableEntry e = (HashtableEntry) bucket(hashToIndex(hashValue)); e != null; e = (HashtableEntry) e.next()) {
@@ -85,7 +93,8 @@
          }
       }
     }
-    return null;
+
+    return sharedTable.probe(name, hashValue);
   }
 
   public interface SymbolVisitor {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/CompactHashTable.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+package sun.jvm.hotspot.utilities;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class CompactHashTable extends VMObject {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+      public void update(Observable o, Object data) {
+        initialize(VM.getVM().getTypeDataBase());
+      }
+    });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
+    Type type = db.lookupType("SymbolCompactHashTable");
+    baseAddressField = type.getAddressField("_base_address");
+    bucketCountField = type.getCIntegerField("_bucket_count");
+    tableEndOffsetField = type.getCIntegerField("_table_end_offset");
+    bucketsField = type.getAddressField("_buckets");
+    uintSize = db.lookupType("juint").getSize();
+  }
+
+  // Fields
+  private static CIntegerField bucketCountField;
+  private static CIntegerField tableEndOffsetField;
+  private static AddressField  baseAddressField;
+  private static AddressField  bucketsField;
+  private static long uintSize;
+
+  private static int BUCKET_OFFSET_MASK = 0x3FFFFFFF;
+  private static int BUCKET_TYPE_SHIFT = 30;
+  private static int COMPACT_BUCKET_TYPE = 1;
+
+  public CompactHashTable(Address addr) {
+    super(addr);
+  }
+
+  private int bucketCount() {
+    return (int)bucketCountField.getValue(addr);
+  }
+
+  private int tableEndOffset() {
+    return (int)tableEndOffsetField.getValue(addr);
+  }
+
+  private boolean isCompactBucket(int bucket_info) {
+    return (bucket_info >> BUCKET_TYPE_SHIFT) == COMPACT_BUCKET_TYPE;
+  }
+
+  private int bucketOffset(int bucket_info) {
+    return bucket_info & BUCKET_OFFSET_MASK;
+  }
+
+  public Symbol probe(byte[] name, long hash) {
+    long    symOffset;
+    Symbol  sym;
+    Address baseAddress = baseAddressField.getValue(addr);
+    Address bucket = bucketsField.getValue(addr);
+    Address bucketEnd = bucket;
+    long index = hash % bucketCount();
+    int bucketInfo = (int)bucket.getCIntegerAt(index * uintSize, uintSize, true);
+    int bucketOffset = bucketOffset(bucketInfo);
+    int nextBucketInfo = (int)bucket.getCIntegerAt((index+1) * uintSize, uintSize, true);
+    int nextBucketOffset = bucketOffset(nextBucketInfo);
+
+    bucket = bucket.addOffsetTo(bucketOffset * uintSize);
+
+    if (isCompactBucket(bucketInfo)) {
+      symOffset = bucket.getCIntegerAt(0, uintSize, true);
+      sym = Symbol.create(baseAddress.addOffsetTo(symOffset));
+      if (sym.equals(name)) {
+        return sym;
+      }
+    } else {
+      bucketEnd = bucket.addOffsetTo(nextBucketOffset * uintSize);
+      while (bucket.lessThan(bucketEnd)) {
+        long symHash = bucket.getCIntegerAt(0, uintSize, true);
+        if (symHash == hash) {
+          symOffset = bucket.getCIntegerAt(uintSize, uintSize, true);
+          Address symAddr = baseAddress.addOffsetTo(symOffset);
+          sym = Symbol.create(symAddr);
+          if (sym.equals(name)) {
+            return sym;
+          }
+        }
+        bucket = bucket.addOffsetTo(2 * uintSize);
+      }
+    }
+    return null;
+  }
+}
--- a/hotspot/src/cpu/x86/vm/frame_x86.cpp	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/src/cpu/x86/vm/frame_x86.cpp	Thu Feb 05 12:23:29 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -123,7 +123,9 @@
     }
 
     intptr_t* sender_sp = NULL;
+    intptr_t* sender_unextended_sp = NULL;
     address   sender_pc = NULL;
+    intptr_t* saved_fp =  NULL;
 
     if (is_interpreted_frame()) {
       // fp must be safe
@@ -132,7 +134,12 @@
       }
 
       sender_pc = (address) this->fp()[return_addr_offset];
+      // for interpreted frames, the value below is the sender "raw" sp,
+      // which can be different from the sender unextended sp (the sp seen
+      // by the sender) because of current frame local variables
       sender_sp = (intptr_t*) addr_at(sender_sp_offset);
+      sender_unextended_sp = (intptr_t*) this->fp()[interpreter_frame_sender_sp_offset];
+      saved_fp = (intptr_t*) this->fp()[link_offset];
 
     } else {
       // must be some sort of compiled/runtime frame
@@ -144,8 +151,11 @@
       }
 
       sender_sp = _unextended_sp + _cb->frame_size();
+      sender_unextended_sp = sender_sp;
       // On Intel the return_address is always the word on the stack
       sender_pc = (address) *(sender_sp-1);
+      // Note: frame::sender_sp_offset is only valid for compiled frame
+      saved_fp = (intptr_t*) *(sender_sp - frame::sender_sp_offset);
     }
 
 
@@ -156,7 +166,6 @@
       // only if the sender is interpreted/call_stub (c1 too?) are we certain that the saved ebp
       // is really a frame pointer.
 
-      intptr_t *saved_fp = (intptr_t*)*(sender_sp - frame::sender_sp_offset);
       bool saved_fp_safe = ((address)saved_fp < thread->stack_base()) && (saved_fp > sender_sp);
 
       if (!saved_fp_safe) {
@@ -165,7 +174,7 @@
 
       // construct the potential sender
 
-      frame sender(sender_sp, saved_fp, sender_pc);
+      frame sender(sender_sp, sender_unextended_sp, saved_fp, sender_pc);
 
       return sender.is_interpreted_frame_valid(thread);
 
@@ -194,7 +203,6 @@
 
     // Could be the call_stub
     if (StubRoutines::returns_to_call_stub(sender_pc)) {
-      intptr_t *saved_fp = (intptr_t*)*(sender_sp - frame::sender_sp_offset);
       bool saved_fp_safe = ((address)saved_fp < thread->stack_base()) && (saved_fp > sender_sp);
 
       if (!saved_fp_safe) {
@@ -203,7 +211,7 @@
 
       // construct the potential sender
 
-      frame sender(sender_sp, saved_fp, sender_pc);
+      frame sender(sender_sp, sender_unextended_sp, saved_fp, sender_pc);
 
       // Validate the JavaCallWrapper an entry frame must have
       address jcw = (address)sender.entry_frame_call_wrapper();
@@ -568,8 +576,11 @@
   if (!m->is_valid_method()) return false;
 
   // stack frames shouldn't be much larger than max_stack elements
-
-  if (fp() - sp() > 1024 + m->max_stack()*Interpreter::stackElementSize) {
+  // this test requires the use the unextended_sp which is the sp as seen by
+  // the current frame, and not sp which is the "raw" pc which could point
+  // further because of local variables of the callee method inserted after
+  // method arguments
+  if (fp() - unextended_sp() > 1024 + m->max_stack()*Interpreter::stackElementSize) {
     return false;
   }
 
--- a/hotspot/src/share/vm/classfile/classFileParser.cpp	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/src/share/vm/classfile/classFileParser.cpp	Thu Feb 05 12:23:29 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -62,6 +62,7 @@
 #include "utilities/globalDefinitions.hpp"
 #include "utilities/macros.hpp"
 #include "utilities/ostream.hpp"
+#include "utilities/resourceHash.hpp"
 #if INCLUDE_CDS
 #include "classfile/systemDictionaryShared.hpp"
 #endif
@@ -693,7 +694,6 @@
 }
 
 
-
 class NameSigHash: public ResourceObj {
  public:
   Symbol*       _name;       // name
@@ -1370,6 +1370,33 @@
 }
 
 
+class LVT_Hash : public AllStatic {
+ public:
+
+  static bool equals(LocalVariableTableElement const& e0, LocalVariableTableElement const& e1) {
+  /*
+   * 3-tuple start_bci/length/slot has to be unique key,
+   * so the following comparison seems to be redundant:
+   *       && elem->name_cp_index == entry->_elem->name_cp_index
+   */
+    return (e0.start_bci     == e1.start_bci &&
+            e0.length        == e1.length &&
+            e0.name_cp_index == e1.name_cp_index &&
+            e0.slot          == e1.slot);
+  }
+
+  static unsigned int hash(LocalVariableTableElement const& e0) {
+    unsigned int raw_hash = e0.start_bci;
+
+    raw_hash = e0.length        + raw_hash * 37;
+    raw_hash = e0.name_cp_index + raw_hash * 37;
+    raw_hash = e0.slot          + raw_hash * 37;
+
+    return raw_hash;
+  }
+};
+
+
 // Class file LocalVariableTable elements.
 class Classfile_LVT_Element VALUE_OBJ_CLASS_SPEC {
  public:
@@ -1380,88 +1407,6 @@
   u2 slot;
 };
 
-
-class LVT_Hash: public CHeapObj<mtClass> {
- public:
-  LocalVariableTableElement  *_elem;  // element
-  LVT_Hash*                   _next;  // Next entry in hash table
-};
-
-unsigned int hash(LocalVariableTableElement *elem) {
-  unsigned int raw_hash = elem->start_bci;
-
-  raw_hash = elem->length        + raw_hash * 37;
-  raw_hash = elem->name_cp_index + raw_hash * 37;
-  raw_hash = elem->slot          + raw_hash * 37;
-
-  return raw_hash % HASH_ROW_SIZE;
-}
-
-void initialize_hashtable(LVT_Hash** table) {
-  for (int i = 0; i < HASH_ROW_SIZE; i++) {
-    table[i] = NULL;
-  }
-}
-
-void clear_hashtable(LVT_Hash** table) {
-  for (int i = 0; i < HASH_ROW_SIZE; i++) {
-    LVT_Hash* current = table[i];
-    LVT_Hash* next;
-    while (current != NULL) {
-      next = current->_next;
-      current->_next = NULL;
-      delete(current);
-      current = next;
-    }
-    table[i] = NULL;
-  }
-}
-
-LVT_Hash* LVT_lookup(LocalVariableTableElement *elem, int index, LVT_Hash** table) {
-  LVT_Hash* entry = table[index];
-
-  /*
-   * 3-tuple start_bci/length/slot has to be unique key,
-   * so the following comparison seems to be redundant:
-   *       && elem->name_cp_index == entry->_elem->name_cp_index
-   */
-  while (entry != NULL) {
-    if (elem->start_bci           == entry->_elem->start_bci
-     && elem->length              == entry->_elem->length
-     && elem->name_cp_index       == entry->_elem->name_cp_index
-     && elem->slot                == entry->_elem->slot
-    ) {
-      return entry;
-    }
-    entry = entry->_next;
-  }
-  return NULL;
-}
-
-// Return false if the local variable is found in table.
-// Return true if no duplicate is found.
-// And local variable is added as a new entry in table.
-bool LVT_put_after_lookup(LocalVariableTableElement *elem, LVT_Hash** table) {
-  // First lookup for duplicates
-  int index = hash(elem);
-  LVT_Hash* entry = LVT_lookup(elem, index, table);
-
-  if (entry != NULL) {
-      return false;
-  }
-  // No duplicate is found, allocate a new entry and fill it.
-  if ((entry = new LVT_Hash()) == NULL) {
-    return false;
-  }
-  entry->_elem = elem;
-
-  // Insert into hash table
-  entry->_next = table[index];
-  table[index] = entry;
-
-  return true;
-}
-
 void copy_lvt_element(Classfile_LVT_Element *src, LocalVariableTableElement *lvt) {
   lvt->start_bci           = Bytes::get_Java_u2((u1*) &src->start_bci);
   lvt->length              = Bytes::get_Java_u2((u1*) &src->length);
@@ -1861,8 +1806,12 @@
                                                u2** localvariable_type_table_start,
                                                TRAPS) {
 
-  LVT_Hash** lvt_Hash = NEW_RESOURCE_ARRAY(LVT_Hash*, HASH_ROW_SIZE);
-  initialize_hashtable(lvt_Hash);
+  ResourceMark rm(THREAD);
+
+  typedef ResourceHashtable<LocalVariableTableElement, LocalVariableTableElement*,
+                            &LVT_Hash::hash, &LVT_Hash::equals> LVT_HashTable;
+
+  LVT_HashTable* table = new LVT_HashTable();
 
   // To fill LocalVariableTable in
   Classfile_LVT_Element*  cf_lvt;
@@ -1872,11 +1821,10 @@
     cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no];
     for (int idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) {
       copy_lvt_element(&cf_lvt[idx], lvt);
-      // If no duplicates, add LVT elem in hashtable lvt_Hash.
-      if (LVT_put_after_lookup(lvt, lvt_Hash) == false
+      // If no duplicates, add LVT elem in hashtable.
+      if (table->put(*lvt, lvt) == false
           && _need_verify
           && _major_version >= JAVA_1_5_VERSION) {
-        clear_hashtable(lvt_Hash);
         classfile_parse_error("Duplicated LocalVariableTable attribute "
                               "entry for '%s' in class file %s",
                                _cp->symbol_at(lvt->name_cp_index)->as_utf8(),
@@ -1893,29 +1841,25 @@
     cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no];
     for (int idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) {
       copy_lvt_element(&cf_lvtt[idx], &lvtt_elem);
-      int index = hash(&lvtt_elem);
-      LVT_Hash* entry = LVT_lookup(&lvtt_elem, index, lvt_Hash);
+      LocalVariableTableElement** entry = table->get(lvtt_elem);
       if (entry == NULL) {
         if (_need_verify) {
-          clear_hashtable(lvt_Hash);
           classfile_parse_error("LVTT entry for '%s' in class file %s "
                                 "does not match any LVT entry",
                                  _cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),
                                  CHECK);
         }
-      } else if (entry->_elem->signature_cp_index != 0 && _need_verify) {
-        clear_hashtable(lvt_Hash);
+      } else if ((*entry)->signature_cp_index != 0 && _need_verify) {
         classfile_parse_error("Duplicated LocalVariableTypeTable attribute "
                               "entry for '%s' in class file %s",
                                _cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),
                                CHECK);
       } else {
         // to add generic signatures into LocalVariableTable
-        entry->_elem->signature_cp_index = lvtt_elem.descriptor_cp_index;
+        (*entry)->signature_cp_index = lvtt_elem.descriptor_cp_index;
       }
     }
   }
-  clear_hashtable(lvt_Hash);
 }
 
 
--- a/hotspot/src/share/vm/classfile/compactHashtable.hpp	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/src/share/vm/classfile/compactHashtable.hpp	Thu Feb 05 12:23:29 2015 +0100
@@ -188,6 +188,7 @@
 // dump time.
 //
 template <class T, class N> class CompactHashtable VALUE_OBJ_CLASS_SPEC {
+  friend class VMStructs;
   uintx  _base_address;
   juint  _entry_count;
   juint  _bucket_count;
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Thu Feb 05 12:23:29 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -27,6 +27,7 @@
 #include "classfile/javaClasses.hpp"
 #include "classfile/loaderConstraints.hpp"
 #include "classfile/placeholders.hpp"
+#include "classfile/compactHashtable.hpp"
 #include "classfile/stringTable.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "ci/ciField.hpp"
@@ -243,6 +244,7 @@
 typedef Hashtable<Klass*, mtClass>            KlassHashtable;
 typedef HashtableEntry<Klass*, mtClass>       KlassHashtableEntry;
 typedef TwoOopHashtable<Symbol*, mtClass>     SymbolTwoOopHashtable;
+typedef CompactHashtable<Symbol*, char>       SymbolCompactHashTable;
 
 //--------------------------------------------------------------------------------
 // VM_STRUCTS
@@ -624,6 +626,7 @@
   /***************/                                                                                                                  \
                                                                                                                                      \
      static_field(SymbolTable,                  _the_table,                                   SymbolTable*)                          \
+     static_field(SymbolTable,                  _shared_table,                                SymbolCompactHashTable)                \
                                                                                                                                      \
   /***************/                                                                                                                  \
   /* StringTable */                                                                                                                  \
@@ -632,6 +635,16 @@
      static_field(StringTable,                  _the_table,                                   StringTable*)                          \
                                                                                                                                      \
   /********************/                                                                                                             \
+  /* CompactHashTable */                                                                                                             \
+  /********************/                                                                                                             \
+                                                                                                                                     \
+  nonstatic_field(SymbolCompactHashTable, _base_address, uintx)                                                                      \
+  nonstatic_field(SymbolCompactHashTable, _entry_count, juint)                                                                       \
+  nonstatic_field(SymbolCompactHashTable, _bucket_count, juint)                                                                      \
+  nonstatic_field(SymbolCompactHashTable, _table_end_offset, juint)                                                                  \
+  nonstatic_field(SymbolCompactHashTable, _buckets, juint*)                                                                          \
+                                                                                                                                     \
+  /********************/                                                                                                             \
   /* SystemDictionary */                                                                                                             \
   /********************/                                                                                                             \
                                                                                                                                      \
@@ -1580,6 +1593,8 @@
     declare_type(ResourceArea, Arena)                                     \
   declare_toplevel_type(Chunk)                                            \
                                                                           \
+  declare_toplevel_type(SymbolCompactHashTable)                           \
+                                                                          \
   /***********************************************************/           \
   /* Thread hierarchy (needed for run-time type information) */           \
   /***********************************************************/           \
--- a/hotspot/test/TEST.groups	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/TEST.groups	Thu Feb 05 12:23:29 2015 +0100
@@ -97,7 +97,7 @@
   runtime/XCheckJniJsig/XCheckJSig.java \
   serviceability/attach/AttachWithStalePidFile.java \
   serviceability/sa/jmap-hprof/JMapHProfLargeHeapTest.java \
-  serviceability/dcmd/DynLibDcmdTest.java
+  serviceability/dcmd/vm/DynLibsTest.java
 
 
 # JRE adds further tests to compact3
@@ -145,7 +145,8 @@
   gc/survivorAlignment \
   runtime/InternalApi/ThreadCpuTimesDeadlock.java \
   serviceability/threads/TestFalseDeadLock.java \
-  compiler/codecache/jmx
+  compiler/codecache/jmx \
+  serviceability/dcmd
 
 # Compact 2 adds full VM tests
 compact2 = \
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/LocalVariableTable/DuplicateLVT.cod	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// This creates a duplicate LVT entry
+
+class DuplicateLVT {
+  0xCAFEBABE;
+  0; // minor version
+  52; // version
+  [] { // Constant Pool
+    ; // first element is empty
+    Method #34 #68; // #1    
+    double 0x3FF199999999999A;; // #2    
+    float 0x3F99999A; // #4    
+    long 0xFFFFFFFFCAFEBABE;; // #5    
+    class #69; // #7    
+    Method #7 #68; // #8    
+    String #70; // #9    
+    Method #7 #71; // #10    
+    Field #72 #73; // #11    
+    class #74; // #12    
+    Method #12 #68; // #13    
+    String #75; // #14    
+    Method #12 #76; // #15    
+    Method #12 #77; // #16    
+    Method #12 #78; // #17    
+    Method #79 #80; // #18    
+    String #81; // #19    
+    Method #12 #82; // #20    
+    String #83; // #21    
+    Method #12 #84; // #22    
+    String #85; // #23    
+    Method #12 #86; // #24    
+    String #87; // #25    
+    Method #12 #88; // #26    
+    String #89; // #27    
+    String #90; // #28    
+    Method #12 #91; // #29    
+    String #92; // #30    
+    String #93; // #31    
+    Method #12 #94; // #32    
+    class #95; // #33    
+    class #96; // #34    
+    Utf8 "<init>"; // #35    
+    Utf8 "()V"; // #36    
+    Utf8 "Code"; // #37    
+    Utf8 "LineNumberTable"; // #38    
+    Utf8 "LocalVariableTable"; // #39    
+    Utf8 "this"; // #40    
+    Utf8 "LDuplicateLVT;"; // #41    
+    Utf8 "main"; // #42    
+    Utf8 "([Ljava/lang/String;)V"; // #43    
+    Utf8 "args"; // #44    
+    Utf8 "[Ljava/lang/String;"; // #45    
+    Utf8 "b"; // #46    
+    Utf8 "Z"; // #47    
+    Utf8 "by"; // #48    
+    Utf8 "B"; // #49    
+    Utf8 "c"; // #50    
+    Utf8 "C"; // #51    
+    Utf8 "d"; // #52    
+    Utf8 "D"; // #53    
+    Utf8 "f"; // #54    
+    Utf8 "F"; // #55    
+    Utf8 "i"; // #56    
+    Utf8 "I"; // #57    
+    Utf8 "l"; // #58    
+    Utf8 "J"; // #59    
+    Utf8 "s"; // #60    
+    Utf8 "S"; // #61    
+    Utf8 "list"; // #62    
+    Utf8 "Ljava/util/ArrayList;"; // #63    
+    Utf8 "LocalVariableTypeTable"; // #64    
+    Utf8 "Ljava/util/ArrayList<Ljava/lang/String;>;"; // #65    
+    Utf8 "SourceFile"; // #66    
+    Utf8 "DuplicateLVT.java"; // #67    
+    NameAndType #35 #36; // #68    
+    Utf8 "java/util/ArrayList"; // #69    
+    Utf8 "me"; // #70    
+    NameAndType #97 #98; // #71    
+    class #99; // #72    
+    NameAndType #100 #101; // #73    
+    Utf8 "java/lang/StringBuilder"; // #74    
+    Utf8 "b="; // #75    
+    NameAndType #102 #103; // #76    
+    NameAndType #102 #104; // #77    
+    NameAndType #105 #106; // #78    
+    class #107; // #79    
+    NameAndType #108 #109; // #80    
+    Utf8 "by="; // #81    
+    NameAndType #102 #110; // #82    
+    Utf8 "c="; // #83    
+    NameAndType #102 #111; // #84    
+    Utf8 "d="; // #85    
+    NameAndType #102 #112; // #86    
+    Utf8 "f="; // #87    
+    NameAndType #102 #113; // #88    
+    Utf8 "i="; // #89    
+    Utf8 "l="; // #90    
+    NameAndType #102 #114; // #91    
+    Utf8 "s="; // #92    
+    Utf8 "ArrayList<String>="; // #93    
+    NameAndType #102 #115; // #94    
+    Utf8 "DuplicateLVT"; // #95    
+    Utf8 "java/lang/Object"; // #96    
+    Utf8 "add"; // #97    
+    Utf8 "(Ljava/lang/Object;)Z"; // #98    
+    Utf8 "java/lang/System"; // #99    
+    Utf8 "out"; // #100    
+    Utf8 "Ljava/io/PrintStream;"; // #101    
+    Utf8 "append"; // #102    
+    Utf8 "(Ljava/lang/String;)Ljava/lang/StringBuilder;"; // #103    
+    Utf8 "(Z)Ljava/lang/StringBuilder;"; // #104    
+    Utf8 "toString"; // #105    
+    Utf8 "()Ljava/lang/String;"; // #106    
+    Utf8 "java/io/PrintStream"; // #107    
+    Utf8 "println"; // #108    
+    Utf8 "(Ljava/lang/String;)V"; // #109    
+    Utf8 "(I)Ljava/lang/StringBuilder;"; // #110    
+    Utf8 "(C)Ljava/lang/StringBuilder;"; // #111    
+    Utf8 "(D)Ljava/lang/StringBuilder;"; // #112    
+    Utf8 "(F)Ljava/lang/StringBuilder;"; // #113    
+    Utf8 "(J)Ljava/lang/StringBuilder;"; // #114    
+    Utf8 "(Ljava/lang/Object;)Ljava/lang/StringBuilder;"; // #115    
+  } // Constant Pool
+
+  0x0021; // access
+  #33;// this_cpx
+  #34;// super_cpx
+
+  [] { // Interfaces
+  } // Interfaces
+
+  [] { // fields
+  } // fields
+
+  [] { // methods
+    { // Member
+      0x0001; // access
+      #35; // name_cpx
+      #36; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          1; // max_stack
+          1; // max_locals
+          Bytes[]{
+            0x2AB70001B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  26;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 5 40 41 0;
+              }
+            } // end LocalVariableTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+    ;
+    { // Member
+      0x0009; // access
+      #42; // name_cpx
+      #43; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          4; // max_stack
+          12; // max_locals
+          Bytes[]{
+            0x043C10423D10583E;
+            0x1400023904120438;
+            0x06102A3607140005;
+            0x37081058360ABB00;
+            0x0759B700083A0B19;
+            0x0B1209B6000A57B2;
+            0x000BBB000C59B700;
+            0x0D120EB6000F1BB6;
+            0x0010B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D1213B6000F1C;
+            0xB60014B60011B600;
+            0x12B2000BBB000C59;
+            0xB7000D1215B6000F;
+            0x1DB60016B60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D1217B600;
+            0x0F1804B60018B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D1219;
+            0xB6000F1706B6001A;
+            0xB60011B60012B200;
+            0x0BBB000C59B7000D;
+            0x121BB6000F1507B6;
+            0x0014B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D121CB6000F16;
+            0x08B6001DB60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D121EB600;
+            0x0F150AB60014B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D121F;
+            0xB6000F190BB60020;
+            0xB60011B60012B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  28;
+                2  29;
+                5  30;
+                8  31;
+                13  32;
+                17  33;
+                21  34;
+                26  35;
+                30  36;
+                39  37;
+                47  39;
+                72  40;
+                97  41;
+                122  42;
+                148  43;
+                174  44;
+                200  45;
+                226  46;
+                252  47;
+                278  48;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 279 44 45 0;
+                2 277 46 47 1;
+                5 274 48 49 2;
+                5 274 48 49 2;
+                8 271 50 51 3;
+                13 266 52 53 4;
+                17 262 54 55 6;
+                21 258 56 57 7;
+                26 253 58 59 8;
+                30 249 60 61 10;
+                39 240 62 63 11;
+              }
+            } // end LocalVariableTable
+            ;
+            Attr(#64) { // LocalVariableTypeTable
+              [] { // LocalVariableTypeTable
+                39 240 62 65 11;
+              }
+            } // end LocalVariableTypeTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+  } // methods
+
+  [] { // Attributes
+    Attr(#66) { // SourceFile
+      #67;
+    } // end SourceFile
+  } // Attributes
+} // end class DuplicateLVT
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/LocalVariableTable/DuplicateLVTT.cod	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// There's a duplicate LVTT entry below.
+
+class DuplicateLVTT {
+  0xCAFEBABE;
+  0; // minor version
+  52; // version
+  [] { // Constant Pool
+    ; // first element is empty
+    Method #34 #68; // #1    
+    double 0x3FF199999999999A;; // #2    
+    float 0x3F99999A; // #4    
+    long 0xFFFFFFFFCAFEBABE;; // #5    
+    class #69; // #7    
+    Method #7 #68; // #8    
+    String #70; // #9    
+    Method #7 #71; // #10    
+    Field #72 #73; // #11    
+    class #74; // #12    
+    Method #12 #68; // #13    
+    String #75; // #14    
+    Method #12 #76; // #15    
+    Method #12 #77; // #16    
+    Method #12 #78; // #17    
+    Method #79 #80; // #18    
+    String #81; // #19    
+    Method #12 #82; // #20    
+    String #83; // #21    
+    Method #12 #84; // #22    
+    String #85; // #23    
+    Method #12 #86; // #24    
+    String #87; // #25    
+    Method #12 #88; // #26    
+    String #89; // #27    
+    String #90; // #28    
+    Method #12 #91; // #29    
+    String #92; // #30    
+    String #93; // #31    
+    Method #12 #94; // #32    
+    class #95; // #33    
+    class #96; // #34    
+    Utf8 "<init>"; // #35    
+    Utf8 "()V"; // #36    
+    Utf8 "Code"; // #37    
+    Utf8 "LineNumberTable"; // #38    
+    Utf8 "LocalVariableTable"; // #39    
+    Utf8 "this"; // #40    
+    Utf8 "LDuplicateLVTT;"; // #41    
+    Utf8 "main"; // #42    
+    Utf8 "([Ljava/lang/String;)V"; // #43    
+    Utf8 "args"; // #44    
+    Utf8 "[Ljava/lang/String;"; // #45    
+    Utf8 "b"; // #46    
+    Utf8 "Z"; // #47    
+    Utf8 "by"; // #48    
+    Utf8 "B"; // #49    
+    Utf8 "c"; // #50    
+    Utf8 "C"; // #51    
+    Utf8 "d"; // #52    
+    Utf8 "D"; // #53    
+    Utf8 "f"; // #54    
+    Utf8 "F"; // #55    
+    Utf8 "i"; // #56    
+    Utf8 "I"; // #57    
+    Utf8 "l"; // #58    
+    Utf8 "J"; // #59    
+    Utf8 "s"; // #60    
+    Utf8 "S"; // #61    
+    Utf8 "list"; // #62    
+    Utf8 "Ljava/util/ArrayList;"; // #63    
+    Utf8 "LocalVariableTypeTable"; // #64    
+    Utf8 "Ljava/util/ArrayList<Ljava/lang/String;>;"; // #65    
+    Utf8 "SourceFile"; // #66    
+    Utf8 "DuplicateLVTT.java"; // #67    
+    NameAndType #35 #36; // #68    
+    Utf8 "java/util/ArrayList"; // #69    
+    Utf8 "me"; // #70    
+    NameAndType #97 #98; // #71    
+    class #99; // #72    
+    NameAndType #100 #101; // #73    
+    Utf8 "java/lang/StringBuilder"; // #74    
+    Utf8 "b="; // #75    
+    NameAndType #102 #103; // #76    
+    NameAndType #102 #104; // #77    
+    NameAndType #105 #106; // #78    
+    class #107; // #79    
+    NameAndType #108 #109; // #80    
+    Utf8 "by="; // #81    
+    NameAndType #102 #110; // #82    
+    Utf8 "c="; // #83    
+    NameAndType #102 #111; // #84    
+    Utf8 "d="; // #85    
+    NameAndType #102 #112; // #86    
+    Utf8 "f="; // #87    
+    NameAndType #102 #113; // #88    
+    Utf8 "i="; // #89    
+    Utf8 "l="; // #90    
+    NameAndType #102 #114; // #91    
+    Utf8 "s="; // #92    
+    Utf8 "ArrayList<String>="; // #93    
+    NameAndType #102 #115; // #94    
+    Utf8 "DuplicateLVTT"; // #95    
+    Utf8 "java/lang/Object"; // #96    
+    Utf8 "add"; // #97    
+    Utf8 "(Ljava/lang/Object;)Z"; // #98    
+    Utf8 "java/lang/System"; // #99    
+    Utf8 "out"; // #100    
+    Utf8 "Ljava/io/PrintStream;"; // #101    
+    Utf8 "append"; // #102    
+    Utf8 "(Ljava/lang/String;)Ljava/lang/StringBuilder;"; // #103    
+    Utf8 "(Z)Ljava/lang/StringBuilder;"; // #104    
+    Utf8 "toString"; // #105    
+    Utf8 "()Ljava/lang/String;"; // #106    
+    Utf8 "java/io/PrintStream"; // #107    
+    Utf8 "println"; // #108    
+    Utf8 "(Ljava/lang/String;)V"; // #109    
+    Utf8 "(I)Ljava/lang/StringBuilder;"; // #110    
+    Utf8 "(C)Ljava/lang/StringBuilder;"; // #111    
+    Utf8 "(D)Ljava/lang/StringBuilder;"; // #112    
+    Utf8 "(F)Ljava/lang/StringBuilder;"; // #113    
+    Utf8 "(J)Ljava/lang/StringBuilder;"; // #114    
+    Utf8 "(Ljava/lang/Object;)Ljava/lang/StringBuilder;"; // #115    
+  } // Constant Pool
+
+  0x0021; // access
+  #33;// this_cpx
+  #34;// super_cpx
+
+  [] { // Interfaces
+  } // Interfaces
+
+  [] { // fields
+  } // fields
+
+  [] { // methods
+    { // Member
+      0x0001; // access
+      #35; // name_cpx
+      #36; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          1; // max_stack
+          1; // max_locals
+          Bytes[]{
+            0x2AB70001B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  26;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 5 40 41 0;
+              }
+            } // end LocalVariableTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+    ;
+    { // Member
+      0x0009; // access
+      #42; // name_cpx
+      #43; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          4; // max_stack
+          12; // max_locals
+          Bytes[]{
+            0x043C10423D10583E;
+            0x1400023904120438;
+            0x06102A3607140005;
+            0x37081058360ABB00;
+            0x0759B700083A0B19;
+            0x0B1209B6000A57B2;
+            0x000BBB000C59B700;
+            0x0D120EB6000F1BB6;
+            0x0010B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D1213B6000F1C;
+            0xB60014B60011B600;
+            0x12B2000BBB000C59;
+            0xB7000D1215B6000F;
+            0x1DB60016B60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D1217B600;
+            0x0F1804B60018B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D1219;
+            0xB6000F1706B6001A;
+            0xB60011B60012B200;
+            0x0BBB000C59B7000D;
+            0x121BB6000F1507B6;
+            0x0014B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D121CB6000F16;
+            0x08B6001DB60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D121EB600;
+            0x0F150AB60014B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D121F;
+            0xB6000F190BB60020;
+            0xB60011B60012B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  28;
+                2  29;
+                5  30;
+                8  31;
+                13  32;
+                17  33;
+                21  34;
+                26  35;
+                30  36;
+                39  37;
+                47  39;
+                72  40;
+                97  41;
+                122  42;
+                148  43;
+                174  44;
+                200  45;
+                226  46;
+                252  47;
+                278  48;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 279 44 45 0;
+                2 277 46 47 1;
+                5 274 48 49 2;
+                8 271 50 51 3;
+                13 266 52 53 4;
+                17 262 54 55 6;
+                21 258 56 57 7;
+                26 253 58 59 8;
+                30 249 60 61 10;
+                39 240 62 63 11;
+              }
+            } // end LocalVariableTable
+            ;
+            Attr(#64) { // LocalVariableTypeTable
+              [] { // LocalVariableTypeTable
+                39 240 62 65 11;
+                39 240 62 65 11;
+              }
+            } // end LocalVariableTypeTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+  } // methods
+
+  [] { // Attributes
+    Attr(#66) { // SourceFile
+      #67;
+    } // end SourceFile
+  } // Attributes
+} // end class DuplicateLVTT
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/LocalVariableTable/NotFoundLVTT.cod	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// The LVTT entry points to a non-existant LVT entry
+
+class NotFoundLVTT {
+  0xCAFEBABE;
+  0; // minor version
+  52; // version
+  [] { // Constant Pool
+    ; // first element is empty
+    Method #34 #68; // #1    
+    double 0x3FF199999999999A;; // #2    
+    float 0x3F99999A; // #4    
+    long 0xFFFFFFFFCAFEBABE;; // #5    
+    class #69; // #7    
+    Method #7 #68; // #8    
+    String #70; // #9    
+    Method #7 #71; // #10    
+    Field #72 #73; // #11    
+    class #74; // #12    
+    Method #12 #68; // #13    
+    String #75; // #14    
+    Method #12 #76; // #15    
+    Method #12 #77; // #16    
+    Method #12 #78; // #17    
+    Method #79 #80; // #18    
+    String #81; // #19    
+    Method #12 #82; // #20    
+    String #83; // #21    
+    Method #12 #84; // #22    
+    String #85; // #23    
+    Method #12 #86; // #24    
+    String #87; // #25    
+    Method #12 #88; // #26    
+    String #89; // #27    
+    String #90; // #28    
+    Method #12 #91; // #29    
+    String #92; // #30    
+    String #93; // #31    
+    Method #12 #94; // #32    
+    class #95; // #33    
+    class #96; // #34    
+    Utf8 "<init>"; // #35    
+    Utf8 "()V"; // #36    
+    Utf8 "Code"; // #37    
+    Utf8 "LineNumberTable"; // #38    
+    Utf8 "LocalVariableTable"; // #39    
+    Utf8 "this"; // #40    
+    Utf8 "LNotFoundLVTT;"; // #41    
+    Utf8 "main"; // #42    
+    Utf8 "([Ljava/lang/String;)V"; // #43    
+    Utf8 "args"; // #44    
+    Utf8 "[Ljava/lang/String;"; // #45    
+    Utf8 "b"; // #46    
+    Utf8 "Z"; // #47    
+    Utf8 "by"; // #48    
+    Utf8 "B"; // #49    
+    Utf8 "c"; // #50    
+    Utf8 "C"; // #51    
+    Utf8 "d"; // #52    
+    Utf8 "D"; // #53    
+    Utf8 "f"; // #54    
+    Utf8 "F"; // #55    
+    Utf8 "i"; // #56    
+    Utf8 "I"; // #57    
+    Utf8 "l"; // #58    
+    Utf8 "J"; // #59    
+    Utf8 "s"; // #60    
+    Utf8 "S"; // #61    
+    Utf8 "list"; // #62    
+    Utf8 "Ljava/util/ArrayList;"; // #63    
+    Utf8 "LocalVariableTypeTable"; // #64    
+    Utf8 "Ljava/util/ArrayList<Ljava/lang/String;>;"; // #65    
+    Utf8 "SourceFile"; // #66    
+    Utf8 "NotFoundLVTT.java"; // #67    
+    NameAndType #35 #36; // #68    
+    Utf8 "java/util/ArrayList"; // #69    
+    Utf8 "me"; // #70    
+    NameAndType #97 #98; // #71    
+    class #99; // #72    
+    NameAndType #100 #101; // #73    
+    Utf8 "java/lang/StringBuilder"; // #74    
+    Utf8 "b="; // #75    
+    NameAndType #102 #103; // #76    
+    NameAndType #102 #104; // #77    
+    NameAndType #105 #106; // #78    
+    class #107; // #79    
+    NameAndType #108 #109; // #80    
+    Utf8 "by="; // #81    
+    NameAndType #102 #110; // #82    
+    Utf8 "c="; // #83    
+    NameAndType #102 #111; // #84    
+    Utf8 "d="; // #85    
+    NameAndType #102 #112; // #86    
+    Utf8 "f="; // #87    
+    NameAndType #102 #113; // #88    
+    Utf8 "i="; // #89    
+    Utf8 "l="; // #90    
+    NameAndType #102 #114; // #91    
+    Utf8 "s="; // #92    
+    Utf8 "ArrayList<String>="; // #93    
+    NameAndType #102 #115; // #94    
+    Utf8 "NotFoundLVTT"; // #95    
+    Utf8 "java/lang/Object"; // #96    
+    Utf8 "add"; // #97    
+    Utf8 "(Ljava/lang/Object;)Z"; // #98    
+    Utf8 "java/lang/System"; // #99    
+    Utf8 "out"; // #100    
+    Utf8 "Ljava/io/PrintStream;"; // #101    
+    Utf8 "append"; // #102    
+    Utf8 "(Ljava/lang/String;)Ljava/lang/StringBuilder;"; // #103    
+    Utf8 "(Z)Ljava/lang/StringBuilder;"; // #104    
+    Utf8 "toString"; // #105    
+    Utf8 "()Ljava/lang/String;"; // #106    
+    Utf8 "java/io/PrintStream"; // #107    
+    Utf8 "println"; // #108    
+    Utf8 "(Ljava/lang/String;)V"; // #109    
+    Utf8 "(I)Ljava/lang/StringBuilder;"; // #110    
+    Utf8 "(C)Ljava/lang/StringBuilder;"; // #111    
+    Utf8 "(D)Ljava/lang/StringBuilder;"; // #112    
+    Utf8 "(F)Ljava/lang/StringBuilder;"; // #113    
+    Utf8 "(J)Ljava/lang/StringBuilder;"; // #114    
+    Utf8 "(Ljava/lang/Object;)Ljava/lang/StringBuilder;"; // #115    
+  } // Constant Pool
+
+  0x0021; // access
+  #33;// this_cpx
+  #34;// super_cpx
+
+  [] { // Interfaces
+  } // Interfaces
+
+  [] { // fields
+  } // fields
+
+  [] { // methods
+    { // Member
+      0x0001; // access
+      #35; // name_cpx
+      #36; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          1; // max_stack
+          1; // max_locals
+          Bytes[]{
+            0x2AB70001B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  26;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 5 40 41 0;
+              }
+            } // end LocalVariableTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+    ;
+    { // Member
+      0x0009; // access
+      #42; // name_cpx
+      #43; // sig_cpx
+      [] { // Attributes
+        Attr(#37) { // Code
+          4; // max_stack
+          12; // max_locals
+          Bytes[]{
+            0x043C10423D10583E;
+            0x1400023904120438;
+            0x06102A3607140005;
+            0x37081058360ABB00;
+            0x0759B700083A0B19;
+            0x0B1209B6000A57B2;
+            0x000BBB000C59B700;
+            0x0D120EB6000F1BB6;
+            0x0010B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D1213B6000F1C;
+            0xB60014B60011B600;
+            0x12B2000BBB000C59;
+            0xB7000D1215B6000F;
+            0x1DB60016B60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D1217B600;
+            0x0F1804B60018B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D1219;
+            0xB6000F1706B6001A;
+            0xB60011B60012B200;
+            0x0BBB000C59B7000D;
+            0x121BB6000F1507B6;
+            0x0014B60011B60012;
+            0xB2000BBB000C59B7;
+            0x000D121CB6000F16;
+            0x08B6001DB60011B6;
+            0x0012B2000BBB000C;
+            0x59B7000D121EB600;
+            0x0F150AB60014B600;
+            0x11B60012B2000BBB;
+            0x000C59B7000D121F;
+            0xB6000F190BB60020;
+            0xB60011B60012B1;
+          };
+          [] { // Traps
+          } // end Traps
+          [] { // Attributes
+            Attr(#38) { // LineNumberTable
+              [] { // LineNumberTable
+                0  28;
+                2  29;
+                5  30;
+                8  31;
+                13  32;
+                17  33;
+                21  34;
+                26  35;
+                30  36;
+                39  37;
+                47  39;
+                72  40;
+                97  41;
+                122  42;
+                148  43;
+                174  44;
+                200  45;
+                226  46;
+                252  47;
+                278  48;
+              }
+            } // end LineNumberTable
+            ;
+            Attr(#39) { // LocalVariableTable
+              [] { // LocalVariableTable
+                0 279 44 45 0;
+                2 277 46 47 1;
+                5 274 48 49 2;
+                8 271 50 51 3;
+                13 266 52 53 4;
+                17 262 54 55 6;
+                21 258 56 57 7;
+                26 253 58 59 8;
+                30 249 60 61 10;
+                39 240 62 63 11;
+              }
+            } // end LocalVariableTable
+            ;
+            Attr(#64) { // LocalVariableTypeTable
+              [] { // LocalVariableTypeTable
+                38 240 62 65 11;
+              }
+            } // end LocalVariableTypeTable
+          } // Attributes
+        } // end Code
+      } // Attributes
+    } // Member
+  } // methods
+
+  [] { // Attributes
+    Attr(#66) { // SourceFile
+      #67;
+    } // end SourceFile
+  } // Attributes
+} // end class NotFoundLVTT
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/LocalVariableTable/TestLVT.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8049632
+ * @summary Test ClassFileParser::copy_localvariable_table cases
+ * @library /testlibrary
+ * @compile -g -XDignore.symbol.file TestLVT.java
+ * @run main TestLVT
+ */
+
+import com.oracle.java.testlibrary.*;
+import java.util.*;
+
+public class TestLVT {
+    public static void main(String[] args) throws Exception {
+        test();  // Test good LVT in this test
+
+        String jarFile = System.getProperty("test.src") + "/testcase.jar";
+
+        // java -cp $testSrc/testcase.jar DuplicateLVT
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-cp", jarFile, "DuplicateLVT");
+        new OutputAnalyzer(pb.start())
+            .shouldContain("Duplicated LocalVariableTable attribute entry for 'by' in class file DuplicateLVT")
+            .shouldHaveExitValue(1);
+
+        // java -cp $testclasses/testcase.jar DuplicateLVTT
+        pb = ProcessTools.createJavaProcessBuilder("-cp", jarFile, "DuplicateLVTT");
+        new OutputAnalyzer(pb.start())
+            .shouldContain("Duplicated LocalVariableTypeTable attribute entry for 'list' in class file DuplicateLVTT")
+            .shouldHaveExitValue(1);
+
+        // java -cp $testclasses/testcase.jar NotFoundLVTT
+        pb = ProcessTools.createJavaProcessBuilder("-cp", jarFile, "NotFoundLVTT");
+        new OutputAnalyzer(pb.start())
+            .shouldContain("LVTT entry for 'list' in class file NotFoundLVTT does not match any LVT entry")
+            .shouldHaveExitValue(1);
+    }
+
+    public static void test() {
+        boolean b  = true;
+        byte    by = 0x42;
+        char    c  = 'X';
+        double  d  = 1.1;
+        float   f  = (float) 1.2;
+        int     i  = 42;
+        long    l  = 0xCAFEBABE;
+        short   s  = 88;
+        ArrayList<String> list = new ArrayList<String>();
+        list.add("me");
+
+        System.out.println("b=" + b);
+        System.out.println("by=" + by);
+        System.out.println("c=" + c);
+        System.out.println("d=" + d);
+        System.out.println("f=" + f);
+        System.out.println("i=" + i);
+        System.out.println("l=" + l);
+        System.out.println("s=" + s);
+        System.out.println("ArrayList<String>=" + list);
+    }
+}
Binary file hotspot/test/runtime/LocalVariableTable/testcase.jar has changed
--- a/hotspot/test/runtime/Unsafe/AllocateMemory.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/runtime/Unsafe/AllocateMemory.java	Thu Feb 05 12:23:29 2015 +0100
@@ -25,7 +25,7 @@
  * @test
  * @summary Verifies behaviour of Unsafe.allocateMemory
  * @library /testlibrary
- * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:MallocMaxTestWords=20m AllocateMemory
+ * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:MallocMaxTestWords=100m AllocateMemory
  */
 
 import com.oracle.java.testlibrary.*;
@@ -56,7 +56,7 @@
         // allocateMemory() should throw an OutOfMemoryError when the underlying malloc fails,
         // we test this by limiting the malloc using -XX:MallocMaxTestWords
         try {
-            address = unsafe.allocateMemory(20 * 1024 * 1024 * 8);
+            address = unsafe.allocateMemory(100 * 1024 * 1024 * 8);
         } catch (OutOfMemoryError e) {
             // Expected
             return;
--- a/hotspot/test/serviceability/attach/AttachWithStalePidFile.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/serviceability/attach/AttachWithStalePidFile.java	Thu Feb 05 12:23:29 2015 +0100
@@ -26,6 +26,7 @@
  * @bug 7162400
  * @key regression
  * @summary Regression test for attach issue where stale pid files in /tmp lead to connection issues
+ * @ignore 8024055
  * @library /testlibrary
  * @build com.oracle.java.testlibrary.* AttachWithStalePidFileTarget
  * @run main AttachWithStalePidFile
--- a/hotspot/test/serviceability/dcmd/ClassLoaderStatsTest.java	Wed Feb 04 13:14:27 2015 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,155 +0,0 @@
-/*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test
- *
- * @build ClassLoaderStatsTest DcmdUtil
- * @run main ClassLoaderStatsTest
- */
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.StringReader;
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class ClassLoaderStatsTest {
-
-    // ClassLoader         Parent              CLD*               Classes   ChunkSz   BlockSz  Type
-    // 0x00000007c0215928  0x0000000000000000  0x0000000000000000       0         0         0  org.eclipse.osgi.baseadaptor.BaseAdaptor$1
-    // 0x00000007c0009868  0x0000000000000000  0x00007fc52aebcc80       1      6144      3768  sun.reflect.DelegatingClassLoader
-    // 0x00000007c0009868  0x0000000000000000  0x00007fc52b8916d0       1      6144      3688  sun.reflect.DelegatingClassLoader
-    // 0x00000007c0009868  0x00000007c0038ba8  0x00007fc52afb8760       1      6144      3688  sun.reflect.DelegatingClassLoader
-    // 0x00000007c0009868  0x0000000000000000  0x00007fc52afbb1a0       1      6144      3688  sun.reflect.DelegatingClassLoader
-    // 0x0000000000000000  0x0000000000000000  0x00007fc523416070    5019  30060544  29956216  <boot classloader>
-    //                                                                455   1210368    672848   + unsafe anonymous classes
-    // 0x00000007c016b5c8  0x00000007c0038ba8  0x00007fc52a995000       5      8192      5864  org.netbeans.StandardModule$OneModuleClassLoader
-    // 0x00000007c0009868  0x00000007c016b5c8  0x00007fc52ac13640       1      6144      3896  sun.reflect.DelegatingClassLoader
-    // ...
-
-    static Pattern clLine = Pattern.compile("0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*(.*)");
-    static Pattern anonLine = Pattern.compile("\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*.*");
-
-    public static DummyClassLoader dummyloader;
-
-    public static void main(String arg[]) throws Exception {
-
-        // create a classloader and load our special class
-        dummyloader = new DummyClassLoader();
-        Class<?> c = Class.forName("TestClass", true, dummyloader);
-        if (c.getClassLoader() != dummyloader) {
-            throw new RuntimeException("TestClass defined by wrong classloader: " + c.getClassLoader());
-        }
-
-        String result = DcmdUtil.executeDcmd("VM.classloader_stats");
-        BufferedReader r = new BufferedReader(new StringReader(result));
-        String line;
-        while((line = r.readLine()) != null) {
-            Matcher m = clLine.matcher(line);
-            if (m.matches()) {
-                // verify that DummyClassLoader has loaded 1 class and 1 anonymous class
-                if (m.group(4).equals("ClassLoaderStatsTest$DummyClassLoader")) {
-                    System.out.println("line: " + line);
-                    if (!m.group(1).equals("1")) {
-                        throw new Exception("Should have loaded 1 class: " + line);
-                    }
-                    checkPositiveInt(m.group(2));
-                    checkPositiveInt(m.group(3));
-
-                    String next = r.readLine();
-                    System.out.println("next: " + next);
-                    Matcher m1 = anonLine.matcher(next);
-                    m1.matches();
-                    if (!m1.group(1).equals("1")) {
-                        throw new Exception("Should have loaded 1 anonymous class, but found : " + m1.group(1));
-                    }
-                    checkPositiveInt(m1.group(2));
-                    checkPositiveInt(m1.group(3));
-                }
-            }
-        }
-    }
-
-    private static void checkPositiveInt(String s) throws Exception {
-        if (Integer.parseInt(s) <= 0) {
-            throw new Exception("Value should have been > 0: " + s);
-        }
-    }
-
-    public static class DummyClassLoader extends ClassLoader {
-
-        public static final String CLASS_NAME = "TestClass";
-
-        static ByteBuffer readClassFile(String name)
-        {
-            File f = new File(System.getProperty("test.classes", "."),
-                              name);
-            try (FileInputStream fin = new FileInputStream(f);
-                 FileChannel fc = fin.getChannel())
-            {
-                return fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
-            } catch (IOException e) {
-                throw new RuntimeException("Can't open file: " + name, e);
-            }
-        }
-
-        protected Class<?> loadClass(String name, boolean resolve)
-            throws ClassNotFoundException
-        {
-            Class<?> c;
-            if (!"TestClass".equals(name)) {
-                c = super.loadClass(name, resolve);
-            } else {
-                // should not delegate to the system class loader
-                c = findClass(name);
-                if (resolve) {
-                    resolveClass(c);
-                }
-            }
-            return c;
-        }
-
-        protected Class<?> findClass(String name)
-            throws ClassNotFoundException
-        {
-            if (!"TestClass".equals(name)) {
-                throw new ClassNotFoundException("Unexpected class: " + name);
-            }
-            return defineClass(name, readClassFile(name + ".class"), null);
-        }
-    } /* DummyClassLoader */
-
-}
-
-class TestClass {
-    static {
-        // force creation of anonymous class (for the lambdaform)
-        Runnable r = () -> System.out.println("Hello");
-        r.run();
-    }
-}
--- a/hotspot/test/serviceability/dcmd/DcmdUtil.java	Wed Feb 04 13:14:27 2015 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,73 +0,0 @@
-/*
- * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-import sun.management.ManagementFactoryHelper;
-
-import com.sun.management.DiagnosticCommandMBean;
-
-public class DcmdUtil
-{
-    public static String executeDcmd(String cmd, String ... args) {
-        DiagnosticCommandMBean dcmd = ManagementFactoryHelper.getDiagnosticCommandMBean();
-        Object[] dcmdArgs = {args};
-        String[] signature = {String[].class.getName()};
-
-        try {
-            System.out.print("> " + cmd + " ");
-            for (String s : args) {
-                System.out.print(s + " ");
-            }
-            System.out.println(":");
-            String result = (String) dcmd.invoke(transform(cmd), dcmdArgs, signature);
-            System.out.println(result);
-            return result;
-        } catch(Exception ex) {
-            ex.printStackTrace();
-        }
-        return null;
-    }
-
-    private static String transform(String name) {
-        StringBuilder sb = new StringBuilder();
-        boolean toLower = true;
-        boolean toUpper = false;
-        for (int i = 0; i < name.length(); i++) {
-            char c = name.charAt(i);
-            if (c == '.' || c == '_') {
-                toLower = false;
-                toUpper = true;
-            } else {
-                if (toUpper) {
-                    toUpper = false;
-                    sb.append(Character.toUpperCase(c));
-                } else if(toLower) {
-                    sb.append(Character.toLowerCase(c));
-                } else {
-                    sb.append(c);
-                }
-            }
-        }
-        return sb.toString();
-    }
-
-}
--- a/hotspot/test/serviceability/dcmd/DynLibDcmdTest.java	Wed Feb 04 13:14:27 2015 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,69 +0,0 @@
-import java.util.HashSet;
-import java.util.Set;
-import com.oracle.java.testlibrary.Platform;
-
-/*
- * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test
- * @summary Test of VM.dynlib diagnostic command via MBean
- * @library /testlibrary
- * @build com.oracle.java.testlibrary.* DcmdUtil
- * @run main DynLibDcmdTest
- */
-
-public class DynLibDcmdTest {
-
-    public static void main(String[] args) throws Exception {
-        String result = DcmdUtil.executeDcmd("VM.dynlibs");
-
-        String osDependentBaseString = null;
-        if (Platform.isAix()) {
-            osDependentBaseString = "lib%s.so";
-        } else if (Platform.isLinux()) {
-            osDependentBaseString = "lib%s.so";
-        } else if (Platform.isOSX()) {
-            osDependentBaseString = "lib%s.dylib";
-        } else if (Platform.isSolaris()) {
-            osDependentBaseString = "lib%s.so";
-        } else if (Platform.isWindows()) {
-            osDependentBaseString = "%s.dll";
-        }
-
-        if (osDependentBaseString == null) {
-            throw new Exception("Unsupported OS");
-        }
-
-        Set<String> expectedContent = new HashSet<>();
-        expectedContent.add(String.format(osDependentBaseString, "jvm"));
-        expectedContent.add(String.format(osDependentBaseString, "java"));
-        expectedContent.add(String.format(osDependentBaseString, "management"));
-
-        for(String expected : expectedContent) {
-            if (!result.contains(expected)) {
-                throw new Exception("Dynamic library list output did not contain the expected string: '" + expected + "'");
-            }
-        }
-    }
-}
--- a/hotspot/test/serviceability/dcmd/compiler/CodeCacheTest.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/serviceability/dcmd/compiler/CodeCacheTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -24,17 +24,23 @@
 /*
  * @test CodeCacheTest
  * @bug 8054889
- * @library ..
- * @build DcmdUtil CodeCacheTest
- * @run main/othervm -XX:+SegmentedCodeCache CodeCacheTest
- * @run main/othervm -XX:-SegmentedCodeCache CodeCacheTest
- * @run main/othervm -Xint -XX:+SegmentedCodeCache CodeCacheTest
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+SegmentedCodeCache CodeCacheTest
+ * @run testng/othervm -XX:-SegmentedCodeCache CodeCacheTest
+ * @run testng/othervm -Xint -XX:+SegmentedCodeCache CodeCacheTest
  * @summary Test of diagnostic command Compiler.codecache
  */
 
-import java.io.BufferedReader;
-import java.io.StringReader;
-import java.lang.reflect.Method;
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import java.util.Iterator;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -72,7 +78,7 @@
     private static boolean getFlagBool(String flag, String where) {
       Matcher m = Pattern.compile(flag + "\\s+:?= (true|false)").matcher(where);
       if (!m.find()) {
-        throw new RuntimeException("Could not find value for flag " + flag + " in output string");
+        Assert.fail("Could not find value for flag " + flag + " in output string");
       }
       return m.group(1).equals("true");
     }
@@ -80,16 +86,16 @@
     private static int getFlagInt(String flag, String where) {
       Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
       if (!m.find()) {
-        throw new RuntimeException("Could not find value for flag " + flag + " in output string");
+        Assert.fail("Could not find value for flag " + flag + " in output string");
       }
       String match = m.group();
       return Integer.parseInt(match.substring(match.lastIndexOf(" ") + 1, match.length()));
     }
 
-    public static void main(String arg[]) throws Exception {
+    public void run(CommandExecutor executor) {
         // Get number of code cache segments
         int segmentsCount = 0;
-        String flags = DcmdUtil.executeDcmd("VM.flags", "-all");
+        String flags = executor.execute("VM.flags -all").getOutput();
         if (!getFlagBool("SegmentedCodeCache", flags) || !getFlagBool("UseCompiler", flags)) {
           // No segmentation
           segmentsCount = 1;
@@ -102,29 +108,29 @@
         }
 
         // Get output from dcmd (diagnostic command)
-        String result = DcmdUtil.executeDcmd("Compiler.codecache");
-        BufferedReader r = new BufferedReader(new StringReader(result));
+        OutputAnalyzer output = executor.execute("Compiler.codecache");
+        Iterator<String> lines = output.asLines().iterator();
 
         // Validate code cache segments
         String line;
         Matcher m;
         for (int s = 0; s < segmentsCount; ++s) {
           // Validate first line
-          line = r.readLine();
+          line = lines.next();
           m = line1.matcher(line);
           if (m.matches()) {
               for (int i = 2; i <= 5; i++) {
                   int val = Integer.parseInt(m.group(i));
                   if (val < 0) {
-                      throw new Exception("Failed parsing dcmd codecache output");
+                      Assert.fail("Failed parsing dcmd codecache output");
                   }
               }
           } else {
-              throw new Exception("Regexp 1 failed");
+              Assert.fail("Regexp 1 failed to match line: " + line);
           }
 
           // Validate second line
-          line = r.readLine();
+          line = lines.next();
           m = line2.matcher(line);
           if (m.matches()) {
               String start = m.group(1);
@@ -133,44 +139,49 @@
 
               // Lexical compare of hex numbers to check that they look sane.
               if (start.compareTo(mark) > 1) {
-                  throw new Exception("Failed parsing dcmd codecache output");
+                  Assert.fail("Failed parsing dcmd codecache output");
               }
               if (mark.compareTo(top) > 1) {
-                  throw new Exception("Failed parsing dcmd codecache output");
+                  Assert.fail("Failed parsing dcmd codecache output");
               }
           } else {
-              throw new Exception("Regexp 2 failed line: " + line);
+              Assert.fail("Regexp 2 failed to match line: " + line);
           }
         }
 
         // Validate third line
-        line = r.readLine();
+        line = lines.next();
         m = line3.matcher(line);
         if (m.matches()) {
             int blobs = Integer.parseInt(m.group(1));
             if (blobs <= 0) {
-                throw new Exception("Failed parsing dcmd codecache output");
+                Assert.fail("Failed parsing dcmd codecache output");
             }
             int nmethods = Integer.parseInt(m.group(2));
             if (nmethods < 0) {
-                throw new Exception("Failed parsing dcmd codecache output");
+                Assert.fail("Failed parsing dcmd codecache output");
             }
             int adapters = Integer.parseInt(m.group(3));
             if (adapters <= 0) {
-                throw new Exception("Failed parsing dcmd codecache output");
+                Assert.fail("Failed parsing dcmd codecache output");
             }
             if (blobs < (nmethods + adapters)) {
-                throw new Exception("Failed parsing dcmd codecache output");
+                Assert.fail("Failed parsing dcmd codecache output");
             }
         } else {
-            throw new Exception("Regexp 3 failed");
+            Assert.fail("Regexp 3 failed to match line: " + line);
         }
 
         // Validate fourth line
-        line = r.readLine();
+        line = lines.next();
         m = line4.matcher(line);
         if (!m.matches()) {
-            throw new Exception("Regexp 4 failed");
+            Assert.fail("Regexp 4 failed to match line: " + line);
         }
     }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
 }
--- a/hotspot/test/serviceability/dcmd/compiler/CodelistTest.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/serviceability/dcmd/compiler/CodelistTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -24,14 +24,21 @@
 /*
  * @test CodelistTest
  * @bug 8054889
- * @library ..
- * @build DcmdUtil MethodIdentifierParser CodelistTest
- * @run main CodelistTest
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @build MethodIdentifierParser
+ * @run testng CodelistTest
  * @summary Test of diagnostic command Compiler.codelist
  */
 
-import java.io.BufferedReader;
-import java.io.StringReader;
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
 import java.lang.reflect.Method;
 
 public class CodelistTest {
@@ -51,19 +58,17 @@
      *
      */
 
-    public static void main(String arg[]) throws Exception {
+    public void run(CommandExecutor executor) {
         int ok   = 0;
         int fail = 0;
 
         // Get output from dcmd (diagnostic command)
-        String result = DcmdUtil.executeDcmd("Compiler.codelist");
-        BufferedReader r = new BufferedReader(new StringReader(result));
+        OutputAnalyzer output = executor.execute("Compiler.codelist");
 
         // Grab a method name from the output
-        String line;
         int count = 0;
 
-        while((line = r.readLine()) != null) {
+        for (String line : output.asLines()) {
             count++;
 
             String[] parts = line.split(" ");
@@ -83,14 +88,16 @@
             }
 
             MethodIdentifierParser mf = new MethodIdentifierParser(methodPrintedInLogFormat);
-            Method m;
+            Method m = null;
             try {
                 m = mf.getMethod();
             } catch (NoSuchMethodException e) {
                 m = null;
+            } catch (ClassNotFoundException e) {
+                Assert.fail("Test error: Caught unexpected exception", e);
             }
             if (m == null) {
-                throw new Exception("Test failed on: " + methodPrintedInLogFormat);
+                Assert.fail("Test failed on: " + methodPrintedInLogFormat);
             }
             if (count > 10) {
                 // Testing 10 entries is enough. Lets not waste time.
@@ -98,4 +105,9 @@
             }
         }
     }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
 }
--- a/hotspot/test/serviceability/dcmd/compiler/CompilerQueueTest.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/serviceability/dcmd/compiler/CompilerQueueTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -24,17 +24,22 @@
 /*
  * @test CompilerQueueTest
  * @bug 8054889
- * @library ..
+ * @library /testlibrary
  * @ignore 8069160
- * @build DcmdUtil CompilerQueueTest
- * @run main CompilerQueueTest
- * @run main/othervm -XX:-TieredCompilation CompilerQueueTest
- * @run main/othervm -Xint CompilerQueueTest
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng CompilerQueueTest
+ * @run testng/othervm -XX:-TieredCompilation CompilerQueueTest
+ * @run testng/othervm -Xint CompilerQueueTest
  * @summary Test of diagnostic command Compiler.queue
  */
 
-import java.io.BufferedReader;
-import java.io.StringReader;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+import org.testng.annotations.Test;
+
+import java.util.Iterator;
 
 public class CompilerQueueTest {
 
@@ -60,52 +65,55 @@
      *
      **/
 
-    public static void main(String arg[]) throws Exception {
+    public void run(CommandExecutor executor) {
 
         // Get output from dcmd (diagnostic command)
-        String result = DcmdUtil.executeDcmd("Compiler.queue");
-        BufferedReader r = new BufferedReader(new StringReader(result));
+        OutputAnalyzer output = executor.execute("Compiler.queue");
+        Iterator<String> lines = output.asLines().iterator();
 
-        String str = r.readLine();
-
-        while (str != null) {
+        while (lines.hasNext()) {
+            String str = lines.next();
             if (str.startsWith("Contents of C")) {
-                match(r.readLine(), "----------------------------");
-                str = r.readLine();
+                match(lines.next(), "----------------------------");
+                str = lines.next();
                 if (!str.equals("Empty")) {
                     while (str.charAt(0) != '-') {
                         validateMethodLine(str);
-                        str = r.readLine();
+                        str = lines.next();
                     }
                 } else {
-                    str = r.readLine();
+                    str = lines.next();
                 }
                 match(str,"----------------------------");
-                str = r.readLine();
             } else {
-                throw new Exception("Failed parsing dcmd queue, line: " + str);
+                Assert.fail("Failed parsing dcmd queue, line: " + str);
             }
         }
     }
 
-    private static void validateMethodLine(String str)  throws Exception {
+    private static void validateMethodLine(String str) {
         // Skip until package/class name begins. Trim to remove whitespace that
         // may differ.
         String name = str.substring(14).trim();
         int sep = name.indexOf("::");
         if (sep == -1) {
-            throw new Exception("Failed dcmd queue, didn't find separator :: in: " + name);
+            Assert.fail("Failed dcmd queue, didn't find separator :: in: " + name);
         }
         try {
             Class.forName(name.substring(0, sep));
         } catch (ClassNotFoundException e) {
-            throw new Exception("Failed dcmd queue, Class for name: " + str);
+            Assert.fail("Failed dcmd queue, Class for name: " + str);
         }
     }
 
-    public static void match(String line, String str) throws Exception {
+    public static void match(String line, String str) {
         if (!line.equals(str)) {
-            throw new Exception("String equals: " + line + ", " + str);
+            Assert.fail("String equals: " + line + ", " + str);
         }
     }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
 }
--- a/hotspot/test/serviceability/dcmd/compiler/MethodIdentifierParser.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/serviceability/dcmd/compiler/MethodIdentifierParser.java	Thu Feb 05 12:23:29 2015 +0100
@@ -51,11 +51,11 @@
         // Add sanity check for extracted fields
     }
 
-    public Method getMethod() throws NoSuchMethodException, SecurityException, ClassNotFoundException, Exception {
+    public Method getMethod() throws NoSuchMethodException, SecurityException, ClassNotFoundException {
         try {
             return Class.forName(className).getDeclaredMethod(methodName, getParamenterDescriptorArray());
         } catch (UnexpectedTokenException e) {
-            throw new Exception("Parse failed");
+            throw new RuntimeException("Parse failed");
         }
     }
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/framework/HelpTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.PidJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.MainClassJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.FileJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+import org.testng.annotations.Test;
+
+/*
+ * @test
+ * @summary Test of diagnostic command help (tests all DCMD executors)
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+UsePerfData HelpTest
+ */
+public class HelpTest {
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("help");
+
+        output.shouldContain("The following commands are available");
+        output.shouldContain("help");
+        output.shouldContain("VM.version");
+    }
+
+    @Test
+    public void pid() {
+        run(new PidJcmdExecutor());
+    }
+
+    @Test
+    public void mainClass() {
+        run(new MainClassJcmdExecutor());
+    }
+
+    @Test
+    public void file() {
+        run(new FileJcmdExecutor());
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/framework/InvalidCommandTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.PidJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.MainClassJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.FileJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+import org.testng.annotations.Test;
+
+/*
+ * @test
+ * @summary Test of invalid diagnostic command (tests all DCMD executors)
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+UsePerfData InvalidCommandTest
+ */
+public class InvalidCommandTest {
+
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("asdf");
+        output.shouldContain("Unknown diagnostic command");
+    }
+
+    @Test
+    public void pid() {
+        run(new PidJcmdExecutor());
+    }
+
+    @Test
+    public void mainClass() {
+        run(new MainClassJcmdExecutor());
+    }
+
+    @Test
+    public void file() {
+        run(new FileJcmdExecutor());
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/framework/VMVersionTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.PidJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.MainClassJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.FileJcmdExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import org.testng.annotations.Test;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.version (tests all DCMD executors)
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+UsePerfData VMVersionTest
+ */
+public class VMVersionTest {
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("VM.version");
+        output.shouldMatch(".*(?:HotSpot|OpenJDK).*VM.*");
+    }
+
+    @Test
+    public void pid() {
+        run(new PidJcmdExecutor());
+    }
+
+    @Test
+    public void mainClass() {
+        run(new MainClassJcmdExecutor());
+    }
+
+    @Test
+    public void file() {
+        run(new FileJcmdExecutor());
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/ClassHistogramAllTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.class_histogram -all=true
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @build ClassHistogramTest
+ * @run testng ClassHistogramAllTest
+ */
+public class ClassHistogramAllTest extends ClassHistogramTest {
+    public ClassHistogramAllTest() {
+        super();
+        classHistogramArgs = "-all=true";
+    }
+
+    /* See ClassHistogramTest for test cases */
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/ClassHistogramTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+
+import java.util.regex.Pattern;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.class_histogram
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng ClassHistogramTest
+ */
+public class ClassHistogramTest {
+    public static class TestClass {}
+    public static TestClass[] instances = new TestClass[1024];
+    protected String classHistogramArgs = "";
+
+    static {
+        for (int i = 0; i < instances.length; ++i) {
+            instances[i] = new TestClass();
+        }
+    }
+
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("GC.class_histogram " + classHistogramArgs);
+
+        /*
+         * example output:
+         *   num     #instances         #bytes  class name
+         *  ----------------------------------------------
+         *     1:          1647        1133752  [B
+         *     2:          6198         383168  [C
+         *     3:          1464         165744  java.lang.Class
+         *     4:          6151         147624  java.lang.String
+         *     5:          2304          73728  java.util.concurrent.ConcurrentHashMap$Node
+         *     6:          1199          64280  [Ljava.lang.Object;
+         * ...
+         */
+
+        /* Require at least one java.lang.Class */
+        output.shouldMatch("^\\s+\\d+:\\s+\\d+\\s+\\d+\\s+java.lang.Class\\s*$");
+
+        /* Require at least one java.lang.String */
+        output.shouldMatch("^\\s+\\d+:\\s+\\d+\\s+\\d+\\s+java.lang.String\\s*$");
+
+        /* Require at least one java.lang.Object */
+        output.shouldMatch("^\\s+\\d+:\\s+\\d+\\s+\\d+\\s+java.lang.Object\\s*$");
+
+        /* Require at exactly one TestClass[] */
+        output.shouldMatch("^\\s+\\d+:\\s+1\\s+\\d+\\s+" +
+                Pattern.quote(TestClass[].class.getName()) + "\\s*$");
+
+        /* Require at exactly 1024 TestClass */
+        output.shouldMatch("^\\s+\\d+:\\s+1024\\s+\\d+\\s+" +
+                Pattern.quote(TestClass.class.getName()) + "\\s*$");
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/HeapDumpAllTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.heap_dump -all=true
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @build HeapDumpTest
+ * @run testng HeapDumpAllTest
+ */
+public class HeapDumpAllTest extends HeapDumpTest {
+    public HeapDumpAllTest() {
+        super();
+        heapDumpArgs = "-all=true";
+    }
+
+    /* See HeapDumpTest for test cases */
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/HeapDumpTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import java.io.IOException;
+
+import com.oracle.java.testlibrary.JDKToolFinder;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.PidJcmdExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.heap_dump
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng HeapDumpTest
+ */
+public class HeapDumpTest {
+    protected String heapDumpArgs = "";
+
+    public void run(CommandExecutor executor) {
+        String fileName = "jcmd.gc.heap_dump." + System.currentTimeMillis() + ".hprof";
+        String cmd = "GC.heap_dump " + heapDumpArgs + " " + fileName;
+        executor.execute(cmd);
+
+        verifyHeapDump(fileName);
+    }
+
+    private void verifyHeapDump(String fileName) {
+        String jhat = JDKToolFinder.getJDKTool("jhat");
+        String[] cmd = { jhat, "-parseonly", "true", fileName };
+
+        ProcessBuilder pb = new ProcessBuilder(cmd);
+        pb.redirectErrorStream(true);
+        Process p = null;
+        OutputAnalyzer output = null;
+
+        try {
+            p = pb.start();
+            output = new OutputAnalyzer(p);
+
+            /*
+             * Some hprof dumps of all objects contain constantPoolOop references that cannot be resolved, so we ignore
+             * failures about resolving constantPoolOop fields using a negative lookahead
+             */
+            output.shouldNotMatch(".*WARNING(?!.*Failed to resolve object.*constantPoolOop.*).*");
+        } catch (IOException e) {
+            Assert.fail("Test error: Caught exception while reading stdout/err of jhat", e);
+        } finally {
+            if (p != null) {
+                p.destroy();
+            }
+        }
+
+        if (output.getExitValue() != 0) {
+            Assert.fail("Test error: jhat exit code was nonzero");
+        }
+    }
+
+    /* GC.heap_dump is not available over JMX, running jcmd pid executor instead */
+    @Test
+    public void pid() {
+        run(new PidJcmdExecutor());
+    }
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/RunFinalizationTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.ReentrantLock;
+
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.run_finalization
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng RunFinalizationTest
+ */
+public class RunFinalizationTest {
+    static ReentrantLock lock = new ReentrantLock();
+    static Condition cond = lock.newCondition();
+    static volatile boolean wasFinalized = false;
+    static volatile boolean wasInitialized = false;
+
+    class MyObject {
+        public MyObject() {
+            /* Make sure object allocation/deallocation is not optimized out */
+            wasInitialized = true;
+        }
+
+        protected void finalize() {
+            lock.lock();
+            wasFinalized = true;
+            cond.signalAll();
+            lock.unlock();
+        }
+    }
+
+    public static MyObject o;
+
+    public void run(CommandExecutor executor) {
+        lock.lock();
+        o = new MyObject();
+        o = null;
+        System.gc();
+        executor.execute("GC.run_finalization");
+
+        int waited = 0;
+        int waitTime = 15;
+
+        try {
+            System.out.println("Waiting for signal from finalizer");
+
+            while (!cond.await(waitTime, TimeUnit.SECONDS)) {
+                waited += waitTime;
+                System.out.println(String.format("Waited %d seconds", waited));
+            }
+
+            System.out.println("Received signal");
+        } catch (InterruptedException e) {
+            Assert.fail("Test error: Interrupted while waiting for signal from finalizer", e);
+        } finally {
+            lock.unlock();
+        }
+
+        if (!wasFinalized) {
+            Assert.fail("Test failure: Object was not finalized");
+        }
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/RunGCTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.run
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+PrintGCDetails -Xloggc:RunGC.gclog RunGCTest
+ */
+public class RunGCTest {
+    public void run(CommandExecutor executor) {
+        executor.execute("GC.run");
+
+        Path gcLogPath = Paths.get("RunGC.gclog").toAbsolutePath();
+        String gcLog = null;
+
+        try {
+            gcLog = new String(Files.readAllBytes(gcLogPath));
+        } catch (IOException e) {
+            Assert.fail("Test error: Could not read GC log file: " + gcLogPath, e);
+        }
+
+        OutputAnalyzer output = new OutputAnalyzer(gcLog, "");
+        output.shouldMatch(".*\\[Full GC \\(System(\\.gc\\(\\))?.*");
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/thread/PrintConcurrentLocksTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test of diagnostic command Thread.print -l=true
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @build PrintTest
+ * @run testng PrintConcurrentLocksTest
+ */
+public class PrintConcurrentLocksTest extends PrintTest {
+    public PrintConcurrentLocksTest() {
+        jucLocks = true;
+    }
+
+    /* See PrintTest for test cases */
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/thread/PrintTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.locks.ReentrantLock;
+import java.util.regex.Pattern;
+
+/*
+ * @test
+ * @summary Test of diagnostic command Thread.print
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng PrintTest
+ */
+public class PrintTest {
+    protected boolean jucLocks = false;
+
+    CyclicBarrier readyBarrier = new CyclicBarrier(3);
+    CyclicBarrier doneBarrier = new CyclicBarrier(3);
+
+    private void waitForBarrier(CyclicBarrier b) {
+        try {
+            b.await();
+        } catch (InterruptedException | BrokenBarrierException e) {
+            Assert.fail("Test error: Caught unexpected exception:", e);
+        }
+    }
+
+    class MonitorThread extends Thread {
+        Object lock = new Object();
+
+        public void run() {
+            /* Hold lock on "lock" to show up in thread dump */
+            synchronized (lock) {
+                /* Signal that we're ready for thread dump */
+                waitForBarrier(readyBarrier);
+
+                /* Released when the thread dump has been taken */
+                waitForBarrier(doneBarrier);
+            }
+        }
+    }
+
+    class LockThread extends Thread {
+        ReentrantLock lock = new ReentrantLock();
+
+        public void run() {
+            /* Hold lock "lock" to show up in thread dump */
+            lock.lock();
+
+            /* Signal that we're ready for thread dump */
+            waitForBarrier(readyBarrier);
+
+            /* Released when the thread dump has been taken */
+            waitForBarrier(doneBarrier);
+
+            lock.unlock();
+        }
+    }
+
+    public void run(CommandExecutor executor) {
+        MonitorThread mThread = new MonitorThread();
+        mThread.start();
+        LockThread lThread = new LockThread();
+        lThread.start();
+
+        /* Wait for threads to get ready */
+        waitForBarrier(readyBarrier);
+
+        /* Execute */
+        OutputAnalyzer output = executor.execute("Thread.print" + (jucLocks ? " -l=true" : ""));
+
+        /* Signal that we've got the thread dump */
+        waitForBarrier(doneBarrier);
+
+        /*
+         * Example output (trimmed) with arrows indicating the rows we are looking for:
+         *
+         *     ...
+         *     "Thread-2" #24 prio=5 os_prio=0 tid=0x00007f913411f800 nid=0x4fc9 waiting on condition [0x00007f91fbffe000]
+         *        java.lang.Thread.State: WAITING (parking)
+         *       at sun.misc.Unsafe.park(Native Method)
+         *       - parking to wait for  <0x000000071a0868a8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
+         *       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
+         *       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
+         *       at java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:234)
+         *       at java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:362)
+         *       at Print.waitForBarrier(Print.java:26)
+         *       at Print.access$000(Print.java:18)
+         *       at Print$LockThread.run(Print.java:58)
+         *
+         * -->    Locked ownable synchronizers:
+         * -->    - <0x000000071a294930> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
+         *
+         *     "Thread-1" #23 prio=5 os_prio=0 tid=0x00007f913411e800 nid=0x4fc8 waiting on condition [0x00007f9200113000]
+         *        java.lang.Thread.State: WAITING (parking)
+         *       at sun.misc.Unsafe.park(Native Method)
+         *       - parking to wait for  <0x000000071a0868a8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
+         *       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
+         *       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
+         *       at java.util.concurrent.CyclicBarrier.dowait(CyclicBarrier.java:234)
+         *       at java.util.concurrent.CyclicBarrier.await(CyclicBarrier.java:362)
+         *       at Print.waitForBarrier(Print.java:26)
+         *       at Print.access$000(Print.java:18)
+         *       at Print$MonitorThread.run(Print.java:42)
+         * -->   - locked <0x000000071a294390> (a java.lang.Object)
+         *
+         *        Locked ownable synchronizers:
+         *       - None
+         *
+         *     "MainThread" #22 prio=5 os_prio=0 tid=0x00007f923015b000 nid=0x4fc7 in Object.wait() [0x00007f9200840000]
+         *        java.lang.Thread.State: WAITING (on object monitor)
+         *       at java.lang.Object.wait(Native Method)
+         *       - waiting on <0x000000071a70ad98> (a java.lang.UNIXProcess)
+         *       at java.lang.Object.wait(Object.java:502)
+         *        at java.lang.UNIXProcess.waitFor(UNIXProcess.java:397)
+         *        - locked <0x000000071a70ad98> (a java.lang.UNIXProcess)
+         *        at com.oracle.java.testlibrary.dcmd.JcmdExecutor.executeImpl(JcmdExecutor.java:32)
+         *       at com.oracle.java.testlibrary.dcmd.CommandExecutor.execute(CommandExecutor.java:24)
+         * -->   at Print.run(Print.java:74)
+         *       at Print.file(Print.java:112)
+         *     ...
+
+         */
+        output.shouldMatch(".*at " + Pattern.quote(PrintTest.class.getName()) + "\\.run.*");
+        output.shouldMatch(".*- locked <0x\\p{XDigit}+> \\(a " + Pattern.quote(mThread.lock.getClass().getName()) + "\\).*");
+
+        String jucLockPattern1 = ".*Locked ownable synchronizers:.*";
+        String jucLockPattern2 = ".*- <0x\\p{XDigit}+> \\(a " + Pattern.quote(lThread.lock.getClass().getName()) + ".*";
+
+        if (jucLocks) {
+            output.shouldMatch(jucLockPattern1);
+            output.shouldMatch(jucLockPattern2);
+        } else {
+            output.shouldNotMatch(jucLockPattern1);
+            output.shouldNotMatch(jucLockPattern2);
+        }
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/ClassLoaderStatsTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.classloader_stats
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng ClassLoaderStatsTest
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.Iterator;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class ClassLoaderStatsTest {
+
+    // ClassLoader         Parent              CLD*               Classes   ChunkSz   BlockSz  Type
+    // 0x00000007c0215928  0x0000000000000000  0x0000000000000000       0         0         0  org.eclipse.osgi.baseadaptor.BaseAdaptor$1
+    // 0x00000007c0009868  0x0000000000000000  0x00007fc52aebcc80       1      6144      3768  sun.reflect.DelegatingClassLoader
+    // 0x00000007c0009868  0x0000000000000000  0x00007fc52b8916d0       1      6144      3688  sun.reflect.DelegatingClassLoader
+    // 0x00000007c0009868  0x00000007c0038ba8  0x00007fc52afb8760       1      6144      3688  sun.reflect.DelegatingClassLoader
+    // 0x00000007c0009868  0x0000000000000000  0x00007fc52afbb1a0       1      6144      3688  sun.reflect.DelegatingClassLoader
+    // 0x0000000000000000  0x0000000000000000  0x00007fc523416070    5019  30060544  29956216  <boot classloader>
+    //                                                                455   1210368    672848   + unsafe anonymous classes
+    // 0x00000007c016b5c8  0x00000007c0038ba8  0x00007fc52a995000       5      8192      5864  org.netbeans.StandardModule$OneModuleClassLoader
+    // 0x00000007c0009868  0x00000007c016b5c8  0x00007fc52ac13640       1      6144      3896  sun.reflect.DelegatingClassLoader
+    // ...
+
+    static Pattern clLine = Pattern.compile("0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*0x\\p{XDigit}*\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*(.*)");
+    static Pattern anonLine = Pattern.compile("\\s*(\\d*)\\s*(\\d*)\\s*(\\d*)\\s*.*");
+
+    public static DummyClassLoader dummyloader;
+
+    public void run(CommandExecutor executor) throws ClassNotFoundException {
+
+        // create a classloader and load our special class
+        dummyloader = new DummyClassLoader();
+        Class<?> c = Class.forName("TestClass", true, dummyloader);
+        if (c.getClassLoader() != dummyloader) {
+            Assert.fail("TestClass defined by wrong classloader: " + c.getClassLoader());
+        }
+
+        OutputAnalyzer output = executor.execute("VM.classloader_stats");
+        Iterator<String> lines = output.asLines().iterator();
+        while (lines.hasNext()) {
+            String line = lines.next();
+            Matcher m = clLine.matcher(line);
+            if (m.matches()) {
+                // verify that DummyClassLoader has loaded 1 class and 1 anonymous class
+                if (m.group(4).equals("ClassLoaderStatsTest$DummyClassLoader")) {
+                    System.out.println("line: " + line);
+                    if (!m.group(1).equals("1")) {
+                        Assert.fail("Should have loaded 1 class: " + line);
+                    }
+                    checkPositiveInt(m.group(2));
+                    checkPositiveInt(m.group(3));
+
+                    String next = lines.next();
+                    System.out.println("next: " + next);
+                    Matcher m1 = anonLine.matcher(next);
+                    m1.matches();
+                    if (!m1.group(1).equals("1")) {
+                        Assert.fail("Should have loaded 1 anonymous class, but found : " + m1.group(1));
+                    }
+                    checkPositiveInt(m1.group(2));
+                    checkPositiveInt(m1.group(3));
+                }
+            }
+        }
+    }
+
+    private static void checkPositiveInt(String s) {
+        if (Integer.parseInt(s) <= 0) {
+            Assert.fail("Value should have been > 0: " + s);
+        }
+    }
+
+    public static class DummyClassLoader extends ClassLoader {
+
+        public static final String CLASS_NAME = "TestClass";
+
+        static ByteBuffer readClassFile(String name)
+        {
+            File f = new File(System.getProperty("test.classes", "."),
+                              name);
+            try (FileInputStream fin = new FileInputStream(f);
+                 FileChannel fc = fin.getChannel())
+            {
+                return fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
+            } catch (IOException e) {
+                Assert.fail("Can't open file: " + name, e);
+            }
+
+            /* Will not reach here as Assert.fail() throws exception */
+            return null;
+        }
+
+        protected Class<?> loadClass(String name, boolean resolve)
+            throws ClassNotFoundException
+        {
+            Class<?> c;
+            if (!"TestClass".equals(name)) {
+                c = super.loadClass(name, resolve);
+            } else {
+                // should not delegate to the system class loader
+                c = findClass(name);
+                if (resolve) {
+                    resolveClass(c);
+                }
+            }
+            return c;
+        }
+
+        protected Class<?> findClass(String name)
+            throws ClassNotFoundException
+        {
+            if (!"TestClass".equals(name)) {
+                throw new ClassNotFoundException("Unexpected class: " + name);
+            }
+            return defineClass(name, readClassFile(name + ".class"), null);
+        }
+    } /* DummyClassLoader */
+
+    @Test
+    public void jmx() throws ClassNotFoundException {
+        run(new JMXExecutor());
+    }
+}
+
+class TestClass {
+    static {
+        // force creation of anonymous class (for the lambdaform)
+        Runnable r = () -> System.out.println("Hello");
+        r.run();
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/CommandLineTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import org.testng.annotations.Test;
+
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.command_line
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+ThereShouldNotBeAnyVMOptionNamedLikeThis CommandLineTest
+ */
+public class CommandLineTest {
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("VM.command_line");
+        output.shouldContain("-XX:+IgnoreUnrecognizedVMOptions");
+        output.shouldContain("-XX:+ThereShouldNotBeAnyVMOptionNamedLikeThis");
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/DynLibsTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,72 @@
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test of VM.dynlib diagnostic command via MBean
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng DynLibsTest
+ */
+
+public class DynLibsTest {
+
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("VM.dynlibs");
+
+        String osDependentBaseString = null;
+        if (Platform.isAix()) {
+            osDependentBaseString = "lib%s.so";
+        } else if (Platform.isLinux()) {
+            osDependentBaseString = "lib%s.so";
+        } else if (Platform.isOSX()) {
+            osDependentBaseString = "lib%s.dylib";
+        } else if (Platform.isSolaris()) {
+            osDependentBaseString = "lib%s.so";
+        } else if (Platform.isWindows()) {
+            osDependentBaseString = "%s.dll";
+        }
+
+        if (osDependentBaseString == null) {
+            Assert.fail("Unsupported OS");
+        }
+
+        output.shouldContain(String.format(osDependentBaseString, "jvm"));
+        output.shouldContain(String.format(osDependentBaseString, "java"));
+        output.shouldContain(String.format(osDependentBaseString, "management"));
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/FlagsTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+import org.testng.annotations.Test;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.flags
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng/othervm -Xmx129m -XX:+PrintGC -XX:+UnlockDiagnosticVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+ThereShouldNotBeAnyVMOptionNamedLikeThis_Right -XX:-TieredCompilation FlagsTest
+ */
+public class FlagsTest {
+    public void run(CommandExecutor executor) {
+        OutputAnalyzer output = executor.execute("VM.flags");
+
+        /* The following are interpreted by the JVM as actual "flags" */
+        output.shouldContain("-XX:+PrintGC");
+        output.shouldContain("-XX:+UnlockDiagnosticVMOptions");
+        output.shouldContain("-XX:+IgnoreUnrecognizedVMOptions");
+        output.shouldContain("-XX:-TieredCompilation");
+
+        /* The following are not */
+        output.shouldNotContain("-Xmx129m");
+        output.shouldNotContain("-XX:+ThereShouldNotBeAnyVMOptionNamedLikeThis_Right");
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/SystemPropertiesTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.system_properties
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng SystemPropertiesTest
+ */
+public class SystemPropertiesTest {
+    private final static String PROPERTY_NAME  = "SystemPropertiesTestPropertyName";
+    private final static String PROPERTY_VALUE = "SystemPropertiesTestPropertyValue";
+
+    public void run(CommandExecutor executor) {
+        System.setProperty(PROPERTY_NAME, PROPERTY_VALUE);
+
+        OutputAnalyzer output = executor.execute("VM.system_properties");
+        output.shouldContain(PROPERTY_NAME + "=" + PROPERTY_VALUE);
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/UptimeTest.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import java.text.NumberFormat;
+import java.text.ParseException;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.uptime
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng UptimeTest
+ */
+public class UptimeTest {
+    public void run(CommandExecutor executor) {
+        double someUptime = 1.0;
+        long startTime = System.currentTimeMillis();
+        try {
+            synchronized (this) {
+                /* Loop to guard against spurious wake ups */
+                while (System.currentTimeMillis() < (startTime + someUptime * 1000)) {
+                    wait((int) someUptime * 1000);
+                }
+            }
+        } catch (InterruptedException e) {
+            Assert.fail("Test error: Exception caught when sleeping:", e);
+        }
+
+        OutputAnalyzer output = executor.execute("VM.uptime");
+
+        output.stderrShouldBeEmpty();
+
+        /*
+         * Output should be:
+         * [pid]:
+         * xx.yyy s
+         *
+         * If there is only one line in output there is no "[pid]:" printout;
+         * skip first line, split on whitespace and grab first half
+         */
+        int index = output.asLines().size() == 1 ? 0 : 1;
+        String uptimeString = output.asLines().get(index).split("\\s+")[0];
+
+        try {
+            double uptime = NumberFormat.getNumberInstance().parse(uptimeString).doubleValue();
+            if (uptime < someUptime) {
+                Assert.fail(String.format(
+                        "Test failure: Uptime was less than intended sleep time: %.3f s < %.3f s",
+                        uptime, someUptime));
+            }
+        } catch (ParseException e) {
+            Assert.fail("Test failure: Could not parse uptime string: " +
+                    uptimeString, e);
+        }
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}
--- a/hotspot/test/testlibrary/com/oracle/java/testlibrary/OutputAnalyzer.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/OutputAnalyzer.java	Thu Feb 05 12:23:29 2015 +0100
@@ -24,6 +24,8 @@
 package com.oracle.java.testlibrary;
 
 import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -69,6 +71,58 @@
   }
 
   /**
+   * Verify that the stdout contents of output buffer is empty
+   *
+   * @throws RuntimeException
+   *             If stdout was not empty
+   */
+  public void stdoutShouldBeEmpty() {
+    if (!getStdout().isEmpty()) {
+      reportDiagnosticSummary();
+      throw new RuntimeException("stdout was not empty");
+    }
+  }
+
+  /**
+   * Verify that the stderr contents of output buffer is empty
+   *
+   * @throws RuntimeException
+   *             If stderr was not empty
+   */
+  public void stderrShouldBeEmpty() {
+    if (!getStderr().isEmpty()) {
+      reportDiagnosticSummary();
+      throw new RuntimeException("stderr was not empty");
+    }
+  }
+
+  /**
+   * Verify that the stdout contents of output buffer is not empty
+   *
+   * @throws RuntimeException
+   *             If stdout was empty
+   */
+  public void stdoutShouldNotBeEmpty() {
+    if (getStdout().isEmpty()) {
+      reportDiagnosticSummary();
+      throw new RuntimeException("stdout was empty");
+    }
+  }
+
+  /**
+   * Verify that the stderr contents of output buffer is not empty
+   *
+   * @throws RuntimeException
+   *             If stderr was empty
+   */
+  public void stderrShouldNotBeEmpty() {
+    if (getStderr().isEmpty()) {
+      reportDiagnosticSummary();
+      throw new RuntimeException("stderr was empty");
+    }
+  }
+
+    /**
    * Verify that the stdout and stderr contents of output buffer contains the string
    *
    * @param expectedString String that buffer should contain
@@ -365,4 +419,18 @@
   public int getExitValue() {
     return exitValue;
   }
+
+  /**
+   * Get the contents of the output buffer (stdout and stderr) as list of strings.
+   * Output will be split by newlines.
+   *
+   * @return Contents of the output buffer as list of strings
+   */
+  public List<String> asLines() {
+    return asLines(getOutput());
+  }
+
+  private List<String> asLines(String buffer) {
+    return Arrays.asList(buffer.split("(\\r\\n|\\n|\\r)"));
+  }
 }
--- a/hotspot/test/testlibrary/com/oracle/java/testlibrary/ProcessTools.java	Wed Feb 04 13:14:27 2015 -0500
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/ProcessTools.java	Thu Feb 05 12:23:29 2015 +0100
@@ -184,23 +184,36 @@
     return executeProcess(pb);
   }
 
-  /**
-   * Executes a process, waits for it to finish and returns the process output.
-   * @param pb The ProcessBuilder to execute.
-   * @return The output from the process.
-   */
-  public static OutputAnalyzer executeProcess(ProcessBuilder pb) throws Throwable {
-    OutputAnalyzer output = null;
-    try {
-      output = new OutputAnalyzer(pb.start());
-      return output;
-    } catch (Throwable t) {
-      System.out.println("executeProcess() failed: " + t);
-      throw t;
-    } finally {
-      System.out.println(getProcessLog(pb, output));
+    /**
+     * Executes a process, waits for it to finish and returns the process output.
+     * The process will have exited before this method returns.
+     * @param pb The ProcessBuilder to execute.
+     * @return The {@linkplain OutputAnalyzer} instance wrapping the process.
+     */
+    public static OutputAnalyzer executeProcess(ProcessBuilder pb) throws Exception {
+        OutputAnalyzer output = null;
+        Process p = null;
+        boolean failed = false;
+        try {
+            p = pb.start();
+            output = new OutputAnalyzer(p);
+            p.waitFor();
+
+            return output;
+        } catch (Throwable t) {
+            if (p != null) {
+                p.destroyForcibly().waitFor();
+            }
+
+            failed = true;
+            System.out.println("executeProcess() failed: " + t);
+            throw t;
+        } finally {
+            if (failed) {
+                System.err.println(getProcessLog(pb, output));
+            }
+        }
     }
-  }
 
   /**
    * Executes a process, waits for it to finish and returns the process output.
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/CommandExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+/**
+ * Abstract base class for Diagnostic Command executors
+ */
+public abstract class CommandExecutor {
+
+    /**
+     * Execute a diagnostic command
+     *
+     * @param cmd The diagnostic command to execute
+     * @return an {@link jdk.testlibrary.OutputAnalyzer} encapsulating the output of the command
+     * @throws CommandExecutorException if there is an exception on the "calling side" while trying to execute the
+     *          Diagnostic Command. Exceptions thrown on the remote side are available as textual representations in
+     *          stderr, regardless of the specific executor used.
+     */
+    public final OutputAnalyzer execute(String cmd) throws CommandExecutorException {
+        System.out.printf("Running DCMD '%s' through '%s'%n", cmd, this.getClass().getSimpleName());
+        OutputAnalyzer oa = executeImpl(cmd);
+
+        System.out.println("---------------- stdout ----------------");
+        System.out.println(oa.getStdout());
+        System.out.println("---------------- stderr ----------------");
+        System.out.println(oa.getStderr());
+        System.out.println("----------------------------------------");
+        System.out.println();
+
+        return oa;
+    }
+
+    protected abstract OutputAnalyzer executeImpl(String cmd) throws CommandExecutorException;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/CommandExecutorException.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+/**
+ * CommandExecutorException encapsulates exceptions thrown (on the "calling side") from the execution of Diagnostic
+ * Commands
+ */
+public class CommandExecutorException extends RuntimeException {
+    private static final long serialVersionUID = -7039597746579144280L;
+
+    public CommandExecutorException(String message, Throwable e) {
+        super(message, e);
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/FileJcmdExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Executes Diagnostic Commands on the target VM (specified by pid) using the jcmd tool and its ability to read
+ *          Diagnostic Commands from a file.
+ */
+public class FileJcmdExecutor extends PidJcmdExecutor {
+
+    /**
+     * Instantiates a new FileJcmdExecutor targeting the current VM
+     */
+    public FileJcmdExecutor() {
+        super();
+    }
+
+    /**
+     * Instantiates a new FileJcmdExecutor targeting the VM indicated by the given pid
+     *
+     * @param target Pid of the target VM
+     */
+    public FileJcmdExecutor(String target) {
+        super(target);
+    }
+
+    protected List<String> createCommandLine(String cmd) throws CommandExecutorException {
+        File cmdFile = createTempFile();
+        writeCommandToTemporaryFile(cmd, cmdFile);
+
+        return Arrays.asList(jcmdBinary, Integer.toString(pid),
+                "-f", cmdFile.getAbsolutePath());
+    }
+
+    private void writeCommandToTemporaryFile(String cmd, File cmdFile) {
+        try (PrintWriter pw = new PrintWriter(cmdFile)) {
+            pw.println(cmd);
+        } catch (IOException e) {
+            String message = "Could not write to file: " + cmdFile.getAbsolutePath();
+            throw new CommandExecutorException(message, e);
+        }
+    }
+
+    private File createTempFile() {
+        try {
+            File cmdFile = File.createTempFile("input", "jcmd");
+            cmdFile.deleteOnExit();
+            return cmdFile;
+        } catch (IOException e) {
+            throw new CommandExecutorException("Could not create temporary file", e);
+        }
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/JMXExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+import javax.management.*;
+import javax.management.remote.JMXConnector;
+import javax.management.remote.JMXConnectorFactory;
+import javax.management.remote.JMXServiceURL;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import java.lang.management.ManagementFactory;
+
+import java.util.HashMap;
+
+/**
+ * Executes Diagnostic Commands on the target VM (specified by a host/port combination or a full JMX Service URL) using
+ * the JMX interface. If the target is not the current VM, the JMX Remote interface must be enabled beforehand.
+ */
+public class JMXExecutor extends CommandExecutor {
+
+    private final MBeanServerConnection mbs;
+
+    /**
+     * Instantiates a new JMXExecutor targeting the current VM
+     */
+    public JMXExecutor() {
+        super();
+        mbs = ManagementFactory.getPlatformMBeanServer();
+    }
+
+    /**
+     * Instantiates a new JMXExecutor targeting the VM indicated by the given host/port combination or a full JMX
+     * Service URL
+     *
+     * @param target a host/port combination on the format "host:port" or a full JMX Service URL of the target VM
+     */
+    public JMXExecutor(String target) {
+        String urlStr;
+
+        if (target.matches("^\\w[\\w\\-]*(\\.[\\w\\-]+)*:\\d+$")) {
+            /* Matches "hostname:port" */
+            urlStr = String.format("service:jmx:rmi:///jndi/rmi://%s/jmxrmi", target);
+        } else if (target.startsWith("service:")) {
+            urlStr = target;
+        } else {
+            throw new IllegalArgumentException("Could not recognize target string: " + target);
+        }
+
+        try {
+            JMXServiceURL url = new JMXServiceURL(urlStr);
+            JMXConnector c = JMXConnectorFactory.connect(url, new HashMap<>());
+            mbs = c.getMBeanServerConnection();
+        } catch (IOException e) {
+            throw new CommandExecutorException("Could not initiate connection to target: " + target, e);
+        }
+    }
+
+    protected OutputAnalyzer executeImpl(String cmd) throws CommandExecutorException {
+        String stdout = "";
+        String stderr = "";
+
+        String[] cmdParts = cmd.split(" ", 2);
+        String operation = commandToMethodName(cmdParts[0]);
+        Object[] dcmdArgs = produceArguments(cmdParts);
+        String[] signature = {String[].class.getName()};
+
+        ObjectName beanName = getMBeanName();
+
+        try {
+            stdout = (String) mbs.invoke(beanName, operation, dcmdArgs, signature);
+        }
+
+        /* Failures on the "local" side, the one invoking the command. */
+        catch (ReflectionException e) {
+            Throwable cause = e.getCause();
+            if (cause instanceof NoSuchMethodException) {
+                /* We want JMXExecutor to match the behavior of the other CommandExecutors */
+                String message = "Unknown diagnostic command: " + operation;
+                stderr = exceptionTraceAsString(new IllegalArgumentException(message, e));
+            } else {
+                rethrowExecutorException(operation, dcmdArgs, e);
+            }
+        }
+
+        /* Failures on the "local" side, the one invoking the command. */
+        catch (InstanceNotFoundException | IOException e) {
+            rethrowExecutorException(operation, dcmdArgs, e);
+        }
+
+        /* Failures on the remote side, the one executing the invoked command. */
+        catch (MBeanException e) {
+            stdout = exceptionTraceAsString(e);
+        }
+
+        return new OutputAnalyzer(stdout, stderr);
+    }
+
+    private void rethrowExecutorException(String operation, Object[] dcmdArgs,
+                                          Exception e) throws CommandExecutorException {
+        String message = String.format("Could not invoke: %s %s", operation,
+                String.join(" ", (String[]) dcmdArgs[0]));
+        throw new CommandExecutorException(message, e);
+    }
+
+    private ObjectName getMBeanName() throws CommandExecutorException {
+        String MBeanName = "com.sun.management:type=DiagnosticCommand";
+
+        try {
+            return new ObjectName(MBeanName);
+        } catch (MalformedObjectNameException e) {
+            String message = "MBean not found: " + MBeanName;
+            throw new CommandExecutorException(message, e);
+        }
+    }
+
+    private Object[] produceArguments(String[] cmdParts) {
+        Object[] dcmdArgs = {new String[0]}; /* Default: No arguments */
+
+        if (cmdParts.length == 2) {
+            dcmdArgs[0] = cmdParts[1].split(" ");
+        }
+        return dcmdArgs;
+    }
+
+    /**
+     * Convert from diagnostic command to MBean method name
+     *
+     * Examples:
+     * help            --> help
+     * VM.version      --> vmVersion
+     * VM.command_line --> vmCommandLine
+     */
+    private static String commandToMethodName(String cmd) {
+        String operation = "";
+        boolean up = false; /* First letter is to be lower case */
+
+        /*
+         * If a '.' or '_' is encountered it is not copied,
+         * instead the next character will be converted to upper case
+         */
+        for (char c : cmd.toCharArray()) {
+            if (('.' == c) || ('_' == c)) {
+                up = true;
+            } else if (up) {
+                operation = operation.concat(Character.toString(c).toUpperCase());
+                up = false;
+            } else {
+                operation = operation.concat(Character.toString(c).toLowerCase());
+            }
+        }
+
+        return operation;
+    }
+
+    private static String exceptionTraceAsString(Throwable cause) {
+        StringWriter sw = new StringWriter();
+        cause.printStackTrace(new PrintWriter(sw));
+        return sw.toString();
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/JcmdExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import com.oracle.java.testlibrary.JDKToolFinder;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+
+import java.util.List;
+
+/**
+ * Base class for Diagnostic Command Executors using the jcmd tool
+ */
+public abstract class JcmdExecutor extends CommandExecutor {
+    protected String jcmdBinary;
+
+    protected abstract List<String> createCommandLine(String cmd) throws CommandExecutorException;
+
+    protected JcmdExecutor() {
+        jcmdBinary = JDKToolFinder.getJDKTool("jcmd");
+    }
+
+    protected OutputAnalyzer executeImpl(String cmd) throws CommandExecutorException {
+        List<String> commandLine = createCommandLine(cmd);
+
+        try {
+            System.out.printf("Executing command '%s'%n", commandLine);
+            OutputAnalyzer output = ProcessTools.executeProcess(new ProcessBuilder(commandLine));
+            System.out.printf("Command returned with exit code %d%n", output.getExitValue());
+
+            return output;
+        } catch (Exception e) {
+            String message = String.format("Caught exception while executing '%s'", commandLine);
+            throw new CommandExecutorException(message, e);
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/MainClassJcmdExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Executes Diagnostic Commands on the target VM (specified by main class) using the jcmd tool
+ */
+public class MainClassJcmdExecutor extends JcmdExecutor {
+    private final String mainClass;
+
+    /**
+     * Instantiates a new MainClassJcmdExecutor targeting the current VM
+     */
+    public MainClassJcmdExecutor() {
+        super();
+        mainClass = System.getProperty("sun.java.command").split(" ")[0];
+    }
+
+    /**
+     * Instantiates a new MainClassJcmdExecutor targeting the VM indicated by the given main class
+     *
+     * @param target Main class of the target VM
+     */
+    public MainClassJcmdExecutor(String target) {
+        super();
+        mainClass = target;
+    }
+
+    protected List<String> createCommandLine(String cmd) throws CommandExecutorException {
+        return Arrays.asList(jcmdBinary, mainClass, cmd);
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/dcmd/PidJcmdExecutor.java	Thu Feb 05 12:23:29 2015 +0100
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary.dcmd;
+
+import com.oracle.java.testlibrary.ProcessTools;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Executes Diagnostic Commands on the target VM (specified by pid) using the jcmd tool
+ */
+public class PidJcmdExecutor extends JcmdExecutor {
+    protected final int pid;
+
+    /**
+     * Instantiates a new PidJcmdExecutor targeting the current VM
+     */
+    public PidJcmdExecutor() {
+        super();
+        try {
+            pid = ProcessTools.getProcessId();
+        } catch (Exception e) {
+            throw new CommandExecutorException("Could not determine own pid", e);
+        }
+    }
+
+    /**
+     * Instantiates a new PidJcmdExecutor targeting the VM indicated by the given pid
+     *
+     * @param target Pid of the target VM
+     */
+    public PidJcmdExecutor(String target) {
+        super();
+        pid = Integer.valueOf(target);
+    }
+
+    protected List<String> createCommandLine(String cmd) throws CommandExecutorException {
+        return Arrays.asList(jcmdBinary, Integer.toString(pid), cmd);
+    }
+
+}