changeset 26946:4c76a5021fe0

Merge
author iveresov
date Thu, 02 Oct 2014 12:31:03 -0700
parents 03986a6d0e62 981df0f8be4e
children 09eeeb791f79
files hotspot/test/serviceability/dcmd/CodeCacheTest.java hotspot/test/serviceability/dcmd/CodelistTest.java hotspot/test/serviceability/dcmd/CompilerQueueTest.java hotspot/test/serviceability/dcmd/MethodIdentifierParser.java
diffstat 17 files changed, 797 insertions(+), 589 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/src/share/vm/ci/ciEnv.cpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/ci/ciEnv.cpp	Thu Oct 02 12:31:03 2014 -0700
@@ -580,7 +580,12 @@
     oop obj = cpool->resolved_references()->obj_at(cache_index);
     if (obj != NULL) {
       ciObject* ciobj = get_object(obj);
-      return ciConstant(T_OBJECT, ciobj);
+      if (ciobj->is_array()) {
+        return ciConstant(T_ARRAY, ciobj);
+      } else {
+        assert(ciobj->is_instance(), "should be an instance");
+        return ciConstant(T_OBJECT, ciobj);
+      }
     }
     index = cpool->object_to_cp_index(cache_index);
   }
@@ -607,8 +612,12 @@
       }
     }
     ciObject* constant = get_object(string);
-    assert (constant->is_instance(), "must be an instance, or not? ");
-    return ciConstant(T_OBJECT, constant);
+    if (constant->is_array()) {
+      return ciConstant(T_ARRAY, constant);
+    } else {
+      assert (constant->is_instance(), "must be an instance, or not? ");
+      return ciConstant(T_OBJECT, constant);
+    }
   } else if (tag.is_klass() || tag.is_unresolved_klass()) {
     // 4881222: allow ldc to take a class type
     ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor);
--- a/hotspot/src/share/vm/ci/ciTypeFlow.cpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/ci/ciTypeFlow.cpp	Thu Oct 02 12:31:03 2014 -0700
@@ -730,7 +730,7 @@
     if (obj->is_null_object()) {
       push_null();
     } else {
-      assert(obj->is_instance(), "must be java_mirror of klass");
+      assert(obj->is_instance() || obj->is_array(), "must be java_mirror of klass");
       push_object(obj->klass());
     }
   } else {
--- a/hotspot/src/share/vm/code/codeCache.cpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/code/codeCache.cpp	Thu Oct 02 12:31:03 2014 -0700
@@ -347,8 +347,8 @@
   CodeBlob* cb = NULL;
 
   // Get CodeHeap for the given CodeBlobType
-  CodeHeap* heap = get_code_heap(SegmentedCodeCache ? code_blob_type : CodeBlobType::All);
-  assert (heap != NULL, "heap is null");
+  CodeHeap* heap = get_code_heap(code_blob_type);
+  assert(heap != NULL, "heap is null");
 
   while (true) {
     cb = (CodeBlob*)heap->allocate(size, is_critical);
@@ -734,6 +734,11 @@
   return cap;
 }
 
+size_t CodeCache::unallocated_capacity(int code_blob_type) {
+  CodeHeap* heap = get_code_heap(code_blob_type);
+  return (heap != NULL) ? heap->unallocated_capacity() : 0;
+}
+
 size_t CodeCache::unallocated_capacity() {
   size_t unallocated_cap = 0;
   FOR_ALL_HEAPS(heap) {
@@ -1000,7 +1005,8 @@
 // A CodeHeap is full. Print out warning and report event.
 void CodeCache::report_codemem_full(int code_blob_type, bool print) {
   // Get nmethod heap for the given CodeBlobType and build CodeCacheFull event
-  CodeHeap* heap = get_code_heap(SegmentedCodeCache ? code_blob_type : CodeBlobType::All);
+  CodeHeap* heap = get_code_heap(code_blob_type);
+  assert(heap != NULL, "heap is null");
 
   if (!heap->was_full() || print) {
     // Not yet reported for this heap, report
--- a/hotspot/src/share/vm/code/codeCache.hpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/code/codeCache.hpp	Thu Oct 02 12:31:03 2014 -0700
@@ -100,7 +100,7 @@
   static void add_heap(ReservedSpace rs, const char* name, size_t size_initial, int code_blob_type);
   static CodeHeap* get_code_heap(CodeBlob* cb);               // Returns the CodeHeap for the given CodeBlob
   static CodeHeap* get_code_heap(int code_blob_type);         // Returns the CodeHeap for the given CodeBlobType
-  static bool heap_available(int code_blob_type);             // Returns true if a CodeHeap for the given CodeBlobType is available
+  static bool heap_available(int code_blob_type);             // Returns true if an own CodeHeap for the given CodeBlobType is available
   static ReservedCodeSpace reserve_heap_memory(size_t size);  // Reserves one continuous chunk of memory for the CodeHeaps
 
   // Iteration
@@ -175,11 +175,9 @@
   static address high_bound()                         { return _high_bound; }
 
   // Profiling
-  static size_t capacity(int code_blob_type)             { return heap_available(code_blob_type) ? get_code_heap(code_blob_type)->capacity() : 0; }
   static size_t capacity();
-  static size_t unallocated_capacity(int code_blob_type) { return heap_available(code_blob_type) ? get_code_heap(code_blob_type)->unallocated_capacity() : 0; }
+  static size_t unallocated_capacity(int code_blob_type);
   static size_t unallocated_capacity();
-  static size_t max_capacity(int code_blob_type)         { return heap_available(code_blob_type) ? get_code_heap(code_blob_type)->max_capacity() : 0; }
   static size_t max_capacity();
 
   static bool   is_full(int* code_blob_type);
--- a/hotspot/src/share/vm/memory/heap.hpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/memory/heap.hpp	Thu Oct 02 12:31:03 2014 -0700
@@ -171,7 +171,8 @@
   size_t unallocated_capacity() const            { return max_capacity() - allocated_capacity(); }
 
   // Returns true if the CodeHeap contains CodeBlobs of the given type
-  bool accepts(int code_blob_type) const         { return (_code_blob_type == code_blob_type); }
+  bool accepts(int code_blob_type) const         { return (_code_blob_type == CodeBlobType::All) ||
+                                                          (_code_blob_type == code_blob_type); }
   int code_blob_type() const                     { return _code_blob_type; }
 
   // Debugging / Profiling
--- a/hotspot/src/share/vm/opto/callGenerator.cpp	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/src/share/vm/opto/callGenerator.cpp	Thu Oct 02 12:31:03 2014 -0700
@@ -879,7 +879,7 @@
                                             call_does_dispatch, vtable_index);  // out-parameters
           // We lack profiling at this call but type speculation may
           // provide us with a type
-          speculative_receiver_type = receiver_type->speculative_type();
+          speculative_receiver_type = (receiver_type != NULL) ? receiver_type->speculative_type() : NULL;
         }
         CallGenerator* cg = C->call_generator(target, vtable_index, call_does_dispatch, jvms, true, PROB_ALWAYS, speculative_receiver_type, true, true);
         assert(cg == NULL || !cg->is_late_inline() || cg->is_mh_late_inline(), "no late inline here");
--- a/hotspot/test/TEST.groups	Wed Oct 01 15:24:34 2014 -0700
+++ b/hotspot/test/TEST.groups	Thu Oct 02 12:31:03 2014 -0700
@@ -489,6 +489,7 @@
   compiler/uncommontrap/TestStackBangMonitorOwned.java \
   compiler/uncommontrap/TestStackBangRbp.java \
   compiler/unsafe/GetUnsafeObjectG1PreBarrier.java
+  
 
 hotspot_compiler_closed = \
   closed/compiler/4292742/Test.java \
@@ -583,7 +584,8 @@
   sanity/ExecuteInternalVMTests.java
 
 hotspot_serviceability = \
-  sanity/ExecuteInternalVMTests.java
+  sanity/ExecuteInternalVMTests.java \
+  serviceability/dcmd/compiler
 
 hotspot_all = \
   :hotspot_compiler_1 \
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jsr292/NullConstantReceiver.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,62 @@
+/*
+ * 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
+ * @bug 8059556
+ * @run main/othervm -Xbatch NullConstantReceiver
+ */
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+public class NullConstantReceiver {
+    static final MethodHandle target;
+    static {
+        try {
+            target = MethodHandles.lookup().findVirtual(NullConstantReceiver.class, "test", MethodType.methodType(void.class));
+        } catch (ReflectiveOperationException e) {
+            throw new Error(e);
+        }
+    }
+
+    public void test() {}
+
+    static void run() throws Throwable {
+        target.invokeExact((NullConstantReceiver) null);
+    }
+
+    public static void main(String[] args) throws Throwable {
+        for (int i = 0; i<15000; i++) {
+            try {
+                run();
+            } catch (NullPointerException e) {
+                // expected
+                continue;
+            }
+            throw new AssertionError("NPE wasn't thrown");
+        }
+        System.out.println("TEST PASSED");
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jsr292/VMAnonymousClasses.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,125 @@
+/*
+ * 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
+ * @bug 8058828
+ * @run main/bootclasspath -Xbatch VMAnonymousClasses
+ */
+
+import jdk.internal.org.objectweb.asm.ClassWriter;
+import jdk.internal.org.objectweb.asm.MethodVisitor;
+import jdk.internal.org.objectweb.asm.Opcodes;
+import sun.misc.Unsafe;
+
+import java.lang.invoke.ConstantCallSite;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+import java.lang.invoke.MutableCallSite;
+import java.lang.invoke.VolatileCallSite;
+
+public class VMAnonymousClasses {
+    static final String TEST_METHOD_NAME = "constant";
+
+    static final Unsafe UNSAFE = Unsafe.getUnsafe();
+
+    static int getConstantPoolSize(byte[] classFile) {
+        // The first few bytes:
+        // u4 magic;
+        // u2 minor_version;
+        // u2 major_version;
+        // u2 constant_pool_count;
+        return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF);
+    }
+
+    static void test(Object value) throws ReflectiveOperationException {
+        System.out.printf("Test: %s", value != null ? value.getClass() : "null");
+
+        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
+        cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, "Test", null, "java/lang/Object", null);
+
+        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, TEST_METHOD_NAME, "()Ljava/lang/Object;", null, null);
+
+        String placeholder = "CONSTANT";
+        int index = cw.newConst(placeholder);
+        mv.visitLdcInsn(placeholder);
+        mv.visitInsn(Opcodes.ARETURN);
+
+        mv.visitMaxs(0, 0);
+        mv.visitEnd();
+
+        byte[] classFile = cw.toByteArray();
+
+        Object[] cpPatches = new Object[getConstantPoolSize(classFile)];
+        cpPatches[index] = value;
+
+        Class<?> test = UNSAFE.defineAnonymousClass(VMAnonymousClasses.class, classFile, cpPatches);
+
+        Object expectedResult = (value != null) ? value : placeholder;
+        for (int i = 0; i<15000; i++) {
+            Object result = test.getMethod(TEST_METHOD_NAME).invoke(null);
+            if (result != expectedResult) {
+                throw new AssertionError(String.format("Wrong value returned: %s != %s", value, result));
+            }
+        }
+        System.out.println(" PASSED");
+    }
+
+    public static void main(String[] args) throws ReflectiveOperationException  {
+        // Objects
+        test(new Object());
+        test("TEST");
+        test(new VMAnonymousClasses());
+        test(null);
+
+        // Class
+        test(String.class);
+
+        // Arrays
+        test(new boolean[0]);
+        test(new byte[0]);
+        test(new char[0]);
+        test(new short[0]);
+        test(new int[0]);
+        test(new long[0]);
+        test(new float[0]);
+        test(new double[0]);
+        test(new Object[0]);
+
+        // Multi-dimensional arrays
+        test(new byte[0][0]);
+        test(new Object[0][0]);
+
+        // MethodHandle-related
+        MethodType   mt = MethodType.methodType(void.class, String[].class);
+        MethodHandle mh = MethodHandles.lookup().findStatic(VMAnonymousClasses.class, "main", mt);
+        test(mt);
+        test(mh);
+        test(new ConstantCallSite(mh));
+        test(new MutableCallSite(MethodType.methodType(void.class)));
+        test(new VolatileCallSite(MethodType.methodType(void.class)));
+
+        System.out.println("TEST PASSED");
+    }
+}
--- a/hotspot/test/serviceability/dcmd/CodeCacheTest.java	Wed Oct 01 15:24:34 2014 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,174 +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 CodeCacheTest
- * @bug 8054889
- * @build DcmdUtil CodeCacheTest
- * @run main/othervm -XX:+SegmentedCodeCache CodeCacheTest
- * @run main/othervm -XX:-SegmentedCodeCache CodeCacheTest
- * @summary Test of diagnostic command Compiler.codecache
- */
-
-import java.io.BufferedReader;
-import java.io.StringReader;
-import java.lang.reflect.Method;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-public class CodeCacheTest {
-
-    /**
-     * This test calls Jcmd (diagnostic command tool) Compiler.codecache and then parses the output,
-     * making sure that all numbers look ok
-     *
-     *
-     * Expected output without code cache segmentation:
-     *
-     * CodeCache: size=245760Kb used=4680Kb max_used=4680Kb free=241079Kb
-     * bounds [0x00007f5bd9000000, 0x00007f5bd94a0000, 0x00007f5be8000000]
-     * total_blobs=575 nmethods=69 adapters=423
-     * compilation: enabled
-     *
-     * Expected output with code cache segmentation (number of segments may change):
-     *
-     * CodeHeap 'non-nmethods': size=5696Kb used=2236Kb max_used=2238Kb free=3459Kb
-     *  bounds [0x00007fa0f0ffe000, 0x00007fa0f126e000, 0x00007fa0f158e000]
-     * CodeHeap 'profiled nmethods': size=120036Kb used=8Kb max_used=8Kb free=120027Kb
-     *  bounds [0x00007fa0f158e000, 0x00007fa0f17fe000, 0x00007fa0f8ac7000]
-     * CodeHeap 'non-profiled nmethods': size=120036Kb used=2Kb max_used=2Kb free=120034Kb
-     *  bounds [0x00007fa0f8ac7000, 0x00007fa0f8d37000, 0x00007fa100000000]
-     * total_blobs=486 nmethods=8 adapters=399
-     * compilation: enabled
-     */
-
-    static Pattern line1 = Pattern.compile("(CodeCache|CodeHeap.*): size=(\\p{Digit}*)Kb used=(\\p{Digit}*)Kb max_used=(\\p{Digit}*)Kb free=(\\p{Digit}*)Kb");
-    static Pattern line2 = Pattern.compile(" bounds \\[0x(\\p{XDigit}*), 0x(\\p{XDigit}*), 0x(\\p{XDigit}*)\\]");
-    static Pattern line3 = Pattern.compile(" total_blobs=(\\p{Digit}*) nmethods=(\\p{Digit}*) adapters=(\\p{Digit}*)");
-    static Pattern line4 = Pattern.compile(" compilation: (.*)");
-
-    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");
-      }
-      return m.group(1).equals("true");
-    }
-
-    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");
-      }
-      String match = m.group();
-      return Integer.parseInt(match.substring(match.lastIndexOf(" ") + 1, match.length()));
-    }
-
-    public static void main(String arg[]) throws Exception {
-        // Get number of code cache segments
-        int segmentsCount = 0;
-        String flags = DcmdUtil.executeDcmd("VM.flags", "-all");
-        if (!getFlagBool("SegmentedCodeCache", flags) || !getFlagBool("UseCompiler", flags)) {
-          // No segmentation
-          segmentsCount = 1;
-        } else if (getFlagBool("TieredCompilation", flags) && getFlagInt("TieredStopAtLevel", flags) > 1) {
-          // Tiered compilation: use all segments
-          segmentsCount = 3;
-        } else {
-          // No TieredCompilation: only non-nmethod and non-profiled segment
-          segmentsCount = 2;
-        }
-
-        // Get output from dcmd (diagnostic command)
-        String result = DcmdUtil.executeDcmd("Compiler.codecache");
-        BufferedReader r = new BufferedReader(new StringReader(result));
-
-        // Validate code cache segments
-        String line;
-        Matcher m;
-        for (int s = 0; s < segmentsCount; ++s) {
-          // Validate first line
-          line = r.readLine();
-          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");
-                  }
-              }
-          } else {
-              throw new Exception("Regexp 1 failed");
-          }
-
-          // Validate second line
-          line = r.readLine();
-          m = line2.matcher(line);
-          if (m.matches()) {
-              String start = m.group(1);
-              String mark  = m.group(2);
-              String top   = m.group(3);
-
-              // Lexical compare of hex numbers to check that they look sane.
-              if (start.compareTo(mark) > 1) {
-                  throw new Exception("Failed parsing dcmd codecache output");
-              }
-              if (mark.compareTo(top) > 1) {
-                  throw new Exception("Failed parsing dcmd codecache output");
-              }
-          } else {
-              throw new Exception("Regexp 2 failed line: " + line);
-          }
-        }
-
-        // Validate third line
-        line = r.readLine();
-        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");
-            }
-            int nmethods = Integer.parseInt(m.group(2));
-            if (nmethods < 0) {
-                throw new Exception("Failed parsing dcmd codecache output");
-            }
-            int adapters = Integer.parseInt(m.group(3));
-            if (adapters <= 0) {
-                throw new Exception("Failed parsing dcmd codecache output");
-            }
-            if (blobs < (nmethods + adapters)) {
-                throw new Exception("Failed parsing dcmd codecache output");
-            }
-        } else {
-            throw new Exception("Regexp 3 failed");
-        }
-
-        // Validate fourth line
-        line = r.readLine();
-        m = line4.matcher(line);
-        if (!m.matches()) {
-            throw new Exception("Regexp 4 failed");
-        }
-    }
-}
--- a/hotspot/test/serviceability/dcmd/CodelistTest.java	Wed Oct 01 15:24:34 2014 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,97 +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 CodelistTest
- * @bug 8054889
- * @build DcmdUtil MethodIdentifierParser CodelistTest
- * @run main CodelistTest
- * @summary Test of diagnostic command Compiler.codelist
- */
-
-import java.io.BufferedReader;
-import java.io.StringReader;
-import java.lang.reflect.Method;
-
-public class CodelistTest {
-
-    /**
-     * This test calls Jcmd (diagnostic command tool) Compiler.codelist and then parses the output,
-     * making sure that the first methods in the list is valid by reflection.
-     *
-     * Output example:
-     *
-     * 6 0 java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V [0x00007f7b49200910, 0x00007f7b49200aa0 - 0x00007f7b49200d30]
-     * 2 3 java.lang.String.indexOf(II)I [0x00007f7b49200d90, 0x00007f7b49200f60 - 0x00007f7b49201490]
-     * 7 3 java.lang.Math.min(II)I [0x00007f7b4922f010, 0x00007f7b4922f180 - 0x00007f7b4922f338]
-     * 8 3 java.lang.String.equals(Ljava/lang/Object;)Z [0x00007f7b4922fb10, 0x00007f7b4922fd40 - 0x00007f7b49230698]
-     * 9 3 java.lang.AbstractStringBuilder.ensureCapacityInternal(I)V [0x00007f7b49232010, 0x00007f7b492321a0 - 0x00007f7b49232510]
-     * 10 1 java.lang.Object.<init>()V [0x00007f7b49233e90, 0x00007f7b49233fe0 - 0x00007f7b49234118]
-     *
-     */
-
-    public static void main(String arg[]) throws Exception {
-        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));
-
-        // Grab a method name from the output
-        String line;
-        int count = 0;
-
-        while((line = r.readLine()) != null) {
-            count++;
-
-            String[] parts = line.split(" ");
-            // int compileID = Integer.parseInt(parts[0]);
-            // int compileLevel = Integer.parseInt(parts[1]);
-            String methodPrintedInLogFormat = parts[2];
-
-            // skip inits and clinits - they can not be reflected
-            if (methodPrintedInLogFormat.contains("<init>")) {
-                continue;
-            }
-            if (methodPrintedInLogFormat.contains("<clinit>")) {
-                continue;
-            }
-
-            MethodIdentifierParser mf = new MethodIdentifierParser(methodPrintedInLogFormat);
-            Method m;
-            try {
-                m = mf.getMethod();
-            } catch (NoSuchMethodException e) {
-                m = null;
-            }
-            if (m == null) {
-                throw new Exception("Test failed");
-            }
-            if (count > 10) {
-                // Testing 10 entries is enough. Lets not waste time.
-                break;
-            }
-        }
-    }
-}
--- a/hotspot/test/serviceability/dcmd/CompilerQueueTest.java	Wed Oct 01 15:24:34 2014 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,108 +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 CompilerQueueTest
- * @bug 8054889
- * @build DcmdUtil CompilerQueueTest
- * @run main CompilerQueueTest
- * @summary Test of diagnostic command Compiler.queue
- */
-
-import java.io.BufferedReader;
-import java.io.StringReader;
-
-public class CompilerQueueTest {
-
-    /**
-     * This test calls Jcmd (diagnostic command tool) Compiler.queue and
-     * then parses the output, making sure that the output look ok.
-     *
-     *
-     * Output example:
-     *
-     * Contents of C1 compile queue
-     * ----------------------------
-     * 73       3       java.lang.AbstractStringBuilder::append (50 bytes)
-     * 74       1       java.util.TreeMap::size (5 bytes)
-     * 75       3       java.lang.StringBuilder::append (8 bytes)
-     * 83       3       java.util.TreeMap$ValueIterator::next (8 bytes)
-     * 84       1       javax.management.MBeanFeatureInfo::getName (5 bytes)
-     * ----------------------------
-     * Contents of C2 compile queue
-     * ----------------------------
-     * Empty
-     * ----------------------------
-     *
-     **/
-
-    public static void main(String arg[]) throws Exception {
-
-        // Get output from dcmd (diagnostic command)
-        String result = DcmdUtil.executeDcmd("Compiler.queue");
-        BufferedReader r = new BufferedReader(new StringReader(result));
-
-        String line;
-        match(r.readLine(), "Contents of C1 compile queue");
-        match(r.readLine(), "----------------------------");
-        String str = r.readLine();
-        if (!str.equals("Empty")) {
-            while (str.charAt(0) != '-') {
-                validateMethodLine(str);
-                str = r.readLine();
-            }
-        } else {
-            str = r.readLine();
-        }
-
-        match(str,          "----------------------------");
-        match(r.readLine(), "Contents of C2 compile queue");
-        match(r.readLine(), "----------------------------");
-        str = r.readLine();
-        if (!str.equals("Empty")) {
-            while (str.charAt(0) != '-') {
-                validateMethodLine(str);
-                str = r.readLine();
-            }
-        } else {
-            str = r.readLine();
-        }
-        match(str, "----------------------------");
-    }
-
-    private static void validateMethodLine(String str)  throws Exception {
-        String name = str.substring(19);
-        int sep = name.indexOf("::");
-        try {
-            Class.forName(name.substring(0, sep));
-        } catch (ClassNotFoundException e) {
-            throw new Exception("Failed parsing dcmd queue");
-        }
-    }
-
-    public static void match(String line, String str) throws Exception {
-        if (!line.equals(str)) {
-            throw new Exception("String equals: " + line + ", " + str);
-        }
-    }
-}
--- a/hotspot/test/serviceability/dcmd/MethodIdentifierParser.java	Wed Oct 01 15:24:34 2014 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,196 +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.
- */
-
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-
-public class MethodIdentifierParser {
-
-    private String logString;
-    private String className;
-    private String methodName;
-    private String methodDescriptor;
-
-    /**
-     * This is a utility class for parsing the log entries for a method. It supplies
-     * a few select methods for reflecting the class and method from that information.
-     *
-     * Example log entries:
-     * "java.util.TreeMap.successor(Ljava/util/TreeMap$Entry;)Ljava/util/TreeMap$Entry;"
-     */
-
-    public MethodIdentifierParser(String logString) {
-        this.logString = logString;
-
-        int i      = logString.lastIndexOf("."); // find start of method name
-        className  = logString.substring(0, i);  // classname is everything before
-        int i2     = logString.indexOf("(");     // Signature starts with an '('
-        methodName = logString.substring(i+1, i2);
-        methodDescriptor  = logString.substring(i2, logString.length());
-
-        // Add sanity check for extracted fields
-    }
-
-    public Method getMethod() throws NoSuchMethodException, SecurityException, ClassNotFoundException, Exception {
-        try {
-            return Class.forName(className).getDeclaredMethod(methodName, getParamenterDescriptorArray());
-        } catch (UnexpectedTokenException e) {
-            throw new Exception("Parse failed");
-        }
-    }
-
-    public Class<?>[] getParamenterDescriptorArray() throws ClassNotFoundException, UnexpectedTokenException {
-        ParameterDecriptorIterator s = new ParameterDecriptorIterator(methodDescriptor);
-        Class<?> paramType;
-        ArrayList<Class<?>> list = new ArrayList<Class<?>>();
-        while ((paramType = s.nextParamType()) != null) {
-            list.add(paramType);
-        }
-        if (list.size() > 0) {
-            return list.toArray(new Class<?>[list.size()]);
-        } else {
-            return null;
-        }
-    }
-
-    class ParameterDecriptorIterator {
-
-        // This class uses charAt() indexing for startMark and i
-        // That is when i points to the last char it can be retrieved with
-        // charAt(i). Including the last char for a subString requires
-        // substring(startMark, i+1);
-
-        private String methodDescriptor;
-        private int startMark;
-
-        public ParameterDecriptorIterator(String signature) {
-            this.methodDescriptor = signature;
-            this.startMark = 0;
-            if (signature.charAt(0) == '(') {
-                this.startMark = 1;
-            }
-        }
-
-        public Class<?> nextParamType() throws UnexpectedTokenException {
-            int i = startMark;
-            while (methodDescriptor.length() > i) {
-                switch (methodDescriptor.charAt(i)) {
-                case 'C':
-                case 'B':
-                case 'I':
-                case 'J':
-                case 'Z':
-                case 'F':
-                case 'D':
-                case 'S':
-                    // Primitive class case, but we may have gotten here with [ as first token
-                    break;
-                case 'L':
-                    // Internal class name suffixed by ';'
-                    while (methodDescriptor.charAt(i) != ';') {
-                        i++;
-                    }
-                    break;
-                case '[':
-                    i++;         // arrays -> do another pass
-                    continue;
-                case ')':
-                    return null; // end found
-                case 'V':
-                case ';':
-                default:
-                    throw new UnexpectedTokenException(methodDescriptor, i);
-                }
-                break;
-            }
-            if (i == startMark) {
-                // Single char -> primitive class case
-                startMark++; // Update for next iteration
-                switch (methodDescriptor.charAt(i)) {
-                case 'C':
-                    return char.class;
-                case 'B':
-                    return byte.class;
-                case 'I':
-                    return int.class;
-                case 'J':
-                    return long.class;
-                case 'F':
-                    return float.class;
-                case 'D':
-                    return double.class;
-                case 'S':
-                    return short.class;
-                case 'Z':
-                    return boolean.class;
-                default:
-                    throw new UnexpectedTokenException(methodDescriptor, i);
-                }
-            } else {
-                // Multi char case
-                String nextParam;
-                if (methodDescriptor.charAt(startMark) == 'L') {
-                    // When reflecting a class the leading 'L' and trailing';' must be removed.
-                    // (When reflecting an array of classes, they must remain...)
-                    nextParam = methodDescriptor.substring(startMark+1, i);
-                } else {
-                    // Any kind of array - simple case, use whole descriptor when reflecting.
-                    nextParam = methodDescriptor.substring(startMark, i+1);
-                }
-                startMark = ++i; // Update for next iteration
-                try {
-                    // The parameter descriptor uses JVM internal class identifier with '/' as
-                    // package separator, but Class.forName expects '.'.
-                    nextParam = nextParam.replace('/', '.');
-                    return Class.forName(nextParam);
-                } catch (ClassNotFoundException e) {
-                    System.out.println("Class not Found: " + nextParam);
-                    return null;
-                }
-            }
-        }
-    }
-
-    class UnexpectedTokenException extends Exception {
-        String descriptor;
-        int i;
-        public UnexpectedTokenException(String descriptor, int i) {
-            this.descriptor = descriptor;
-            this.i = i;
-        }
-
-        @Override
-        public String toString() {
-            return "Unexpected token at: " + i + " in signature: " + descriptor;
-        }
-
-        private static final long serialVersionUID = 1L;
-    }
-
-    public void debugPrint() {
-        System.out.println("mlf in:               " + logString);
-        System.out.println("mlf class:            " + className);
-        System.out.println("mlf method:           " + methodName);
-        System.out.println("mlf methodDescriptor: " + methodDescriptor);
-    }
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/compiler/CodeCacheTest.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,176 @@
+/*
+ * 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 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
+ * @summary Test of diagnostic command Compiler.codecache
+ */
+
+import java.io.BufferedReader;
+import java.io.StringReader;
+import java.lang.reflect.Method;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CodeCacheTest {
+
+    /**
+     * This test calls Jcmd (diagnostic command tool) Compiler.codecache and then parses the output,
+     * making sure that all numbers look ok
+     *
+     *
+     * Expected output without code cache segmentation:
+     *
+     * CodeCache: size=245760Kb used=4680Kb max_used=4680Kb free=241079Kb
+     * bounds [0x00007f5bd9000000, 0x00007f5bd94a0000, 0x00007f5be8000000]
+     * total_blobs=575 nmethods=69 adapters=423
+     * compilation: enabled
+     *
+     * Expected output with code cache segmentation (number of segments may change):
+     *
+     * CodeHeap 'non-nmethods': size=5696Kb used=2236Kb max_used=2238Kb free=3459Kb
+     *  bounds [0x00007fa0f0ffe000, 0x00007fa0f126e000, 0x00007fa0f158e000]
+     * CodeHeap 'profiled nmethods': size=120036Kb used=8Kb max_used=8Kb free=120027Kb
+     *  bounds [0x00007fa0f158e000, 0x00007fa0f17fe000, 0x00007fa0f8ac7000]
+     * CodeHeap 'non-profiled nmethods': size=120036Kb used=2Kb max_used=2Kb free=120034Kb
+     *  bounds [0x00007fa0f8ac7000, 0x00007fa0f8d37000, 0x00007fa100000000]
+     * total_blobs=486 nmethods=8 adapters=399
+     * compilation: enabled
+     */
+
+    static Pattern line1 = Pattern.compile("(CodeCache|CodeHeap.*): size=(\\p{Digit}*)Kb used=(\\p{Digit}*)Kb max_used=(\\p{Digit}*)Kb free=(\\p{Digit}*)Kb");
+    static Pattern line2 = Pattern.compile(" bounds \\[0x(\\p{XDigit}*), 0x(\\p{XDigit}*), 0x(\\p{XDigit}*)\\]");
+    static Pattern line3 = Pattern.compile(" total_blobs=(\\p{Digit}*) nmethods=(\\p{Digit}*) adapters=(\\p{Digit}*)");
+    static Pattern line4 = Pattern.compile(" compilation: (.*)");
+
+    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");
+      }
+      return m.group(1).equals("true");
+    }
+
+    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");
+      }
+      String match = m.group();
+      return Integer.parseInt(match.substring(match.lastIndexOf(" ") + 1, match.length()));
+    }
+
+    public static void main(String arg[]) throws Exception {
+        // Get number of code cache segments
+        int segmentsCount = 0;
+        String flags = DcmdUtil.executeDcmd("VM.flags", "-all");
+        if (!getFlagBool("SegmentedCodeCache", flags) || !getFlagBool("UseCompiler", flags)) {
+          // No segmentation
+          segmentsCount = 1;
+        } else if (getFlagBool("TieredCompilation", flags) && getFlagInt("TieredStopAtLevel", flags) > 1) {
+          // Tiered compilation: use all segments
+          segmentsCount = 3;
+        } else {
+          // No TieredCompilation: only non-nmethod and non-profiled segment
+          segmentsCount = 2;
+        }
+
+        // Get output from dcmd (diagnostic command)
+        String result = DcmdUtil.executeDcmd("Compiler.codecache");
+        BufferedReader r = new BufferedReader(new StringReader(result));
+
+        // Validate code cache segments
+        String line;
+        Matcher m;
+        for (int s = 0; s < segmentsCount; ++s) {
+          // Validate first line
+          line = r.readLine();
+          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");
+                  }
+              }
+          } else {
+              throw new Exception("Regexp 1 failed");
+          }
+
+          // Validate second line
+          line = r.readLine();
+          m = line2.matcher(line);
+          if (m.matches()) {
+              String start = m.group(1);
+              String mark  = m.group(2);
+              String top   = m.group(3);
+
+              // Lexical compare of hex numbers to check that they look sane.
+              if (start.compareTo(mark) > 1) {
+                  throw new Exception("Failed parsing dcmd codecache output");
+              }
+              if (mark.compareTo(top) > 1) {
+                  throw new Exception("Failed parsing dcmd codecache output");
+              }
+          } else {
+              throw new Exception("Regexp 2 failed line: " + line);
+          }
+        }
+
+        // Validate third line
+        line = r.readLine();
+        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");
+            }
+            int nmethods = Integer.parseInt(m.group(2));
+            if (nmethods < 0) {
+                throw new Exception("Failed parsing dcmd codecache output");
+            }
+            int adapters = Integer.parseInt(m.group(3));
+            if (adapters <= 0) {
+                throw new Exception("Failed parsing dcmd codecache output");
+            }
+            if (blobs < (nmethods + adapters)) {
+                throw new Exception("Failed parsing dcmd codecache output");
+            }
+        } else {
+            throw new Exception("Regexp 3 failed");
+        }
+
+        // Validate fourth line
+        line = r.readLine();
+        m = line4.matcher(line);
+        if (!m.matches()) {
+            throw new Exception("Regexp 4 failed");
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/compiler/CodelistTest.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,101 @@
+/*
+ * 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 CodelistTest
+ * @bug 8054889
+ * @library ..
+ * @build DcmdUtil MethodIdentifierParser CodelistTest
+ * @run main CodelistTest
+ * @summary Test of diagnostic command Compiler.codelist
+ */
+
+import java.io.BufferedReader;
+import java.io.StringReader;
+import java.lang.reflect.Method;
+
+public class CodelistTest {
+
+    /**
+     * This test calls Jcmd (diagnostic command tool) Compiler.codelist and then parses the output,
+     * making sure that the first methods in the list is valid by reflection.
+     *
+     * Output example:
+     *
+     * 6 0 java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V [0x00007f7b49200910, 0x00007f7b49200aa0 - 0x00007f7b49200d30]
+     * 2 3 java.lang.String.indexOf(II)I [0x00007f7b49200d90, 0x00007f7b49200f60 - 0x00007f7b49201490]
+     * 7 3 java.lang.Math.min(II)I [0x00007f7b4922f010, 0x00007f7b4922f180 - 0x00007f7b4922f338]
+     * 8 3 java.lang.String.equals(Ljava/lang/Object;)Z [0x00007f7b4922fb10, 0x00007f7b4922fd40 - 0x00007f7b49230698]
+     * 9 3 java.lang.AbstractStringBuilder.ensureCapacityInternal(I)V [0x00007f7b49232010, 0x00007f7b492321a0 - 0x00007f7b49232510]
+     * 10 1 java.lang.Object.<init>()V [0x00007f7b49233e90, 0x00007f7b49233fe0 - 0x00007f7b49234118]
+     *
+     */
+
+    public static void main(String arg[]) throws Exception {
+        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));
+
+        // Grab a method name from the output
+        String line;
+        int count = 0;
+
+        while((line = r.readLine()) != null) {
+            count++;
+
+            String[] parts = line.split(" ");
+            // int compileID = Integer.parseInt(parts[0]);
+            // int compileLevel = Integer.parseInt(parts[1]);
+            String methodPrintedInLogFormat = parts[2];
+
+            // skip inits, clinits and methodHandles - they can not be reflected
+            if (methodPrintedInLogFormat.contains("<init>")) {
+                continue;
+            }
+            if (methodPrintedInLogFormat.contains("<clinit>")) {
+                continue;
+            }
+            if (methodPrintedInLogFormat.contains("MethodHandle")) {
+                continue;
+            }
+
+            MethodIdentifierParser mf = new MethodIdentifierParser(methodPrintedInLogFormat);
+            Method m;
+            try {
+                m = mf.getMethod();
+            } catch (NoSuchMethodException e) {
+                m = null;
+            }
+            if (m == null) {
+                throw new Exception("Test failed on: " + methodPrintedInLogFormat);
+            }
+            if (count > 10) {
+                // Testing 10 entries is enough. Lets not waste time.
+                break;
+            }
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/compiler/CompilerQueueTest.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,107 @@
+/*
+ * 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 CompilerQueueTest
+ * @bug 8054889
+ * @library ..
+ * @build DcmdUtil CompilerQueueTest
+ * @run main CompilerQueueTest
+ * @run main/othervm -Xint CompilerQueueTest
+ * @summary Test of diagnostic command Compiler.queue
+ */
+
+import java.io.BufferedReader;
+import java.io.StringReader;
+
+public class CompilerQueueTest {
+
+    /**
+     * This test calls Jcmd (diagnostic command tool) Compiler.queue and
+     * then parses the output, making sure that the output look ok.
+     *
+     *
+     * Output example:
+     *
+     * Contents of C1 compile queue
+     * ----------------------------
+     * 73       3       java.lang.AbstractStringBuilder::append (50 bytes)
+     * 74       1       java.util.TreeMap::size (5 bytes)
+     * 75       3       java.lang.StringBuilder::append (8 bytes)
+     * 83       3       java.util.TreeMap$ValueIterator::next (8 bytes)
+     * 84       1       javax.management.MBeanFeatureInfo::getName (5 bytes)
+     * ----------------------------
+     * Contents of C2 compile queue
+     * ----------------------------
+     * Empty
+     * ----------------------------
+     *
+     **/
+
+    public static void main(String arg[]) throws Exception {
+
+        // Get output from dcmd (diagnostic command)
+        String result = DcmdUtil.executeDcmd("Compiler.queue");
+        BufferedReader r = new BufferedReader(new StringReader(result));
+
+        String str = r.readLine();
+
+        while (str != null) {
+            if (str.startsWith("Contents of C")) {
+                match(r.readLine(), "----------------------------");
+                str = r.readLine();
+                if (!str.equals("Empty")) {
+                    while (str.charAt(0) != '-') {
+                        validateMethodLine(str);
+                        str = r.readLine();
+                    }
+                } else {
+                    str = r.readLine();
+                }
+                match(str,"----------------------------");
+                str = r.readLine();
+            } else {
+                throw new Exception("Failed parsing dcmd queue, line: " + str);
+            }
+        }
+    }
+
+    private static void validateMethodLine(String str)  throws Exception {
+        String name = str.substring(19);
+        int sep = name.indexOf("::");
+        if (sep == -1) {
+            throw new Exception("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);
+        }
+    }
+
+    public static void match(String line, String str) throws Exception {
+        if (!line.equals(str)) {
+            throw new Exception("String equals: " + line + ", " + str);
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/compiler/MethodIdentifierParser.java	Thu Oct 02 12:31:03 2014 -0700
@@ -0,0 +1,196 @@
+/*
+ * 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.
+ */
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+
+public class MethodIdentifierParser {
+
+    private String logString;
+    private String className;
+    private String methodName;
+    private String methodDescriptor;
+
+    /**
+     * This is a utility class for parsing the log entries for a method. It supplies
+     * a few select methods for reflecting the class and method from that information.
+     *
+     * Example log entries:
+     * "java.util.TreeMap.successor(Ljava/util/TreeMap$Entry;)Ljava/util/TreeMap$Entry;"
+     */
+
+    public MethodIdentifierParser(String logString) {
+        this.logString = logString;
+
+        int i      = logString.lastIndexOf("."); // find start of method name
+        className  = logString.substring(0, i);  // classname is everything before
+        int i2     = logString.indexOf("(");     // Signature starts with an '('
+        methodName = logString.substring(i+1, i2);
+        methodDescriptor  = logString.substring(i2, logString.length());
+
+        // Add sanity check for extracted fields
+    }
+
+    public Method getMethod() throws NoSuchMethodException, SecurityException, ClassNotFoundException, Exception {
+        try {
+            return Class.forName(className).getDeclaredMethod(methodName, getParamenterDescriptorArray());
+        } catch (UnexpectedTokenException e) {
+            throw new Exception("Parse failed");
+        }
+    }
+
+    public Class<?>[] getParamenterDescriptorArray() throws ClassNotFoundException, UnexpectedTokenException {
+        ParameterDecriptorIterator s = new ParameterDecriptorIterator(methodDescriptor);
+        Class<?> paramType;
+        ArrayList<Class<?>> list = new ArrayList<Class<?>>();
+        while ((paramType = s.nextParamType()) != null) {
+            list.add(paramType);
+        }
+        if (list.size() > 0) {
+            return list.toArray(new Class<?>[list.size()]);
+        } else {
+            return null;
+        }
+    }
+
+    class ParameterDecriptorIterator {
+
+        // This class uses charAt() indexing for startMark and i
+        // That is when i points to the last char it can be retrieved with
+        // charAt(i). Including the last char for a subString requires
+        // substring(startMark, i+1);
+
+        private String methodDescriptor;
+        private int startMark;
+
+        public ParameterDecriptorIterator(String signature) {
+            this.methodDescriptor = signature;
+            this.startMark = 0;
+            if (signature.charAt(0) == '(') {
+                this.startMark = 1;
+            }
+        }
+
+        public Class<?> nextParamType() throws UnexpectedTokenException {
+            int i = startMark;
+            while (methodDescriptor.length() > i) {
+                switch (methodDescriptor.charAt(i)) {
+                case 'C':
+                case 'B':
+                case 'I':
+                case 'J':
+                case 'Z':
+                case 'F':
+                case 'D':
+                case 'S':
+                    // Primitive class case, but we may have gotten here with [ as first token
+                    break;
+                case 'L':
+                    // Internal class name suffixed by ';'
+                    while (methodDescriptor.charAt(i) != ';') {
+                        i++;
+                    }
+                    break;
+                case '[':
+                    i++;         // arrays -> do another pass
+                    continue;
+                case ')':
+                    return null; // end found
+                case 'V':
+                case ';':
+                default:
+                    throw new UnexpectedTokenException(methodDescriptor, i);
+                }
+                break;
+            }
+            if (i == startMark) {
+                // Single char -> primitive class case
+                startMark++; // Update for next iteration
+                switch (methodDescriptor.charAt(i)) {
+                case 'C':
+                    return char.class;
+                case 'B':
+                    return byte.class;
+                case 'I':
+                    return int.class;
+                case 'J':
+                    return long.class;
+                case 'F':
+                    return float.class;
+                case 'D':
+                    return double.class;
+                case 'S':
+                    return short.class;
+                case 'Z':
+                    return boolean.class;
+                default:
+                    throw new UnexpectedTokenException(methodDescriptor, i);
+                }
+            } else {
+                // Multi char case
+                String nextParam;
+                if (methodDescriptor.charAt(startMark) == 'L') {
+                    // When reflecting a class the leading 'L' and trailing';' must be removed.
+                    // (When reflecting an array of classes, they must remain...)
+                    nextParam = methodDescriptor.substring(startMark+1, i);
+                } else {
+                    // Any kind of array - simple case, use whole descriptor when reflecting.
+                    nextParam = methodDescriptor.substring(startMark, i+1);
+                }
+                startMark = ++i; // Update for next iteration
+                try {
+                    // The parameter descriptor uses JVM internal class identifier with '/' as
+                    // package separator, but Class.forName expects '.'.
+                    nextParam = nextParam.replace('/', '.');
+                    return Class.forName(nextParam);
+                } catch (ClassNotFoundException e) {
+                    System.out.println("Class not Found: " + nextParam);
+                    return null;
+                }
+            }
+        }
+    }
+
+    class UnexpectedTokenException extends Exception {
+        String descriptor;
+        int i;
+        public UnexpectedTokenException(String descriptor, int i) {
+            this.descriptor = descriptor;
+            this.i = i;
+        }
+
+        @Override
+        public String toString() {
+            return "Unexpected token at: " + i + " in signature: " + descriptor;
+        }
+
+        private static final long serialVersionUID = 1L;
+    }
+
+    public void debugPrint() {
+        System.out.println("mlf in:               " + logString);
+        System.out.println("mlf class:            " + className);
+        System.out.println("mlf method:           " + methodName);
+        System.out.println("mlf methodDescriptor: " + methodDescriptor);
+    }
+}