--- a/jdk/src/share/classes/com/sun/java/util/jar/pack/Attribute.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/Attribute.java	Mon Oct 18 09:05:49 2010 -0400
@@ -654,8 +654,8 @@
         String layout;
         public FormatException(String message,
                                int ctype, String name, String layout) {
-            super(ATTR_CONTEXT_NAME[ctype]+"."+name
-                  +(message == null? "": (": "+message)));
+            super(ATTR_CONTEXT_NAME[ctype]+ " attribute \"" + name + "\"" +
+                  (message == null? "" : (": " + message)));
             this.ctype = ctype;
             this.name = name;
             this.layout = layout;

--- a/jdk/src/share/classes/com/sun/java/util/jar/pack/ClassReader.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/ClassReader.java	Mon Oct 18 09:05:49 2010 -0400
@@ -30,6 +30,7 @@
 import com.sun.java.util.jar.pack.Package.Class;
 import com.sun.java.util.jar.pack.Package.InnerClass;
 import com.sun.java.util.jar.pack.ConstantPool.*;
+import com.sun.tools.classfile.AttributeException;
 
 /**
  * Reader for a class file that is being incorporated into a package.
@@ -246,7 +247,9 @@
                     fixups[fptr++] = in.readUnsignedShort();
                     break;
                 default:
-                    throw new IOException("Bad constant pool tag "+tag);
+                    throw new ClassFormatException("Bad constant pool tag " +
+                            tag + " in File: " + cls.file.nameString +
+                            " at pos: " + inPos);
             }
         }
 
@@ -403,7 +406,7 @@
                     skip(length, "unknown "+name+" attribute in "+h);
                     continue;
                 } else {
-                    String message = "unknown in "+h;
+                    String message = " is unknown attribute in class " + h;
                     throw new Attribute.FormatException(message, ctype, name,
                                                         unknownAttrCommand);
                 }
@@ -415,7 +418,12 @@
                 if (a.name() == "Code") {
                     Class.Method m = (Class.Method) h;
                     m.code = new Code(m);
-                    readCode(m.code);
+                    try {
+                        readCode(m.code);
+                    } catch (Instruction.FormatException iie) {
+                        String message = iie.getMessage() + " in " + h;
+                        throw new ClassReader.ClassFormatException(message);
+                    }
                 } else {
                     assert(h == cls);
                     readInnerClasses(cls);
@@ -427,6 +435,10 @@
                 in.readFully(bytes);
                 a = a.addContent(bytes);
             }
+            if (a.size() == 0 && !a.layout().isEmpty()) {
+                throw new ClassFormatException(name +
+                        ": attribute length cannot be zero, in " + h);
+            }
             h.addAttribute(a);
             if (verbose > 2)
                 Utils.log.fine("read "+a);
@@ -438,6 +450,7 @@
         code.max_locals = readUnsignedShort();
         code.bytes = new byte[readInt()];
         in.readFully(code.bytes);
+        Instruction.opcodeChecker(code.bytes);
         int nh = readUnsignedShort();
         code.setHandlerCount(nh);
         for (int i = 0; i < nh; i++) {
@@ -463,4 +476,10 @@
         cls.innerClasses = ics;  // set directly; do not use setInnerClasses.
         // (Later, ics may be transferred to the pkg.)
     }
+
+    class ClassFormatException extends IOException {
+        public ClassFormatException(String message) {
+            super(message);
+        }
+    }
 }

--- a/jdk/src/share/classes/com/sun/java/util/jar/pack/Instruction.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/Instruction.java	Mon Oct 18 09:05:49 2010 -0400
@@ -25,6 +25,8 @@
 
 package com.sun.java.util.jar.pack;
 
+import java.io.IOException;
+
 /**
  * A parsed bytecode instruction.
  * Provides accessors to various relevant bits.
@@ -628,4 +630,21 @@
             }
         }
     }
+
+    public static void opcodeChecker(byte[] code) throws FormatException {
+        Instruction i = at(code, 0);
+        while (i != null) {
+            int opcode = i.getBC();
+            if (opcode == _xxxunusedxxx || opcode < _nop || opcode > _jsr_w) {
+                String message = "illegal opcode: " + opcode + " " + i;
+                throw new FormatException(message);
+            }
+            i = i.next();
+        }
+    }
+    static class FormatException extends IOException {
+        FormatException(String message) {
+            super(message);
+        }
+    }
 }

--- a/jdk/src/share/classes/com/sun/java/util/jar/pack/PackerImpl.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/PackerImpl.java	Mon Oct 18 09:05:49 2010 -0400
@@ -496,15 +496,29 @@
             reader.unknownAttrCommand = unknownAttrCommand;
             try {
                 reader.read();
-            } catch (Attribute.FormatException ee) {
-                // He passed up the category to us in layout.
-                if (ee.layout.equals(Pack200.Packer.PASS)) {
-                    Utils.log.warning("Passing class file uncompressed due to unrecognized attribute: "+fname);
-                    Utils.log.info(ee.toString());
-                    return null;
+            } catch (IOException ioe) {
+                String message = "Passing class file uncompressed due to";
+                if (ioe instanceof Attribute.FormatException) {
+                    Attribute.FormatException ee = (Attribute.FormatException) ioe;
+                    // He passed up the category to us in layout.
+                    if (ee.layout.equals(Pack200.Packer.PASS)) {
+                        Utils.log.info(ee.toString());
+                        Utils.log.warning(message + " unrecognized attribute: " +
+                                fname);
+                        return null;
+                    }
+                } else if (ioe instanceof ClassReader.ClassFormatException) {
+                    ClassReader.ClassFormatException ce = (ClassReader.ClassFormatException) ioe;
+                    // %% TODO: Do we invent a new property for this or reuse %%
+                    if (unknownAttrCommand.equals(Pack200.Packer.PASS)) {
+                        Utils.log.info(ce.toString());
+                        Utils.log.warning(message + " unknown class format: " +
+                                fname);
+                        return null;
+                    }
                 }
                 // Otherwise, it must be an error.
-                throw ee;
+                throw ioe;
             }
             pkg.addClass(cls);
             return cls.file;

--- a/jdk/src/share/classes/com/sun/java/util/jar/pack/Utils.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/Utils.java	Mon Oct 18 09:05:49 2010 -0400
@@ -182,11 +182,8 @@
         }
 
         public void warning(String msg, Object param) {
-            int verbose = currentPropMap().getInteger(DEBUG_VERBOSE);
-            if (verbose > 0) {
                 getLogger().warning(msg, param);
             }
-        }
 
         public void warning(String msg) {
             warning(msg, null);

--- a/jdk/src/share/classes/java/nio/Direct-X-Buffer.java.template	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/java/nio/Direct-X-Buffer.java.template	Mon Oct 18 09:05:49 2010 -0400
@@ -29,6 +29,7 @@
 
 import sun.misc.Cleaner;
 import sun.misc.Unsafe;
+import sun.misc.VM;
 import sun.nio.ch.DirectBuffer;
 
 
@@ -114,8 +115,9 @@
     Direct$Type$Buffer$RW$(int cap) {                   // package-private
 #if[rw]
         super(-1, 0, cap, cap, false);
+        boolean pa = VM.isDirectMemoryPageAligned();
         int ps = Bits.pageSize();
-        int size = cap + ps;
+        long size = Math.max(1L, (long)cap + (pa ? ps : 0));
         Bits.reserveMemory(size, cap);
 
         long base = 0;
@@ -126,7 +128,7 @@
             throw x;
         }
         unsafe.setMemory(base, size, (byte) 0);
-        if (base % ps != 0) {
+        if (pa && (base % ps != 0)) {
             // Round up to page boundary
             address = base + ps - (base & (ps - 1));
         } else {

--- a/jdk/src/share/classes/sun/misc/VM.java	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/src/share/classes/sun/misc/VM.java	Mon Oct 18 09:05:49 2010 -0400
@@ -178,6 +178,17 @@
         return directMemory;
     }
 
+    // User-controllable flag that determines if direct buffers should be page
+    // aligned. The "-XX:+PageAlignDirectMemory" option can be used to force
+    // buffers, allocated by ByteBuffer.allocateDirect, to be page aligned.
+    private static boolean pageAlignDirectMemory;
+
+    // Returns {@code true} if the direct buffers should be page aligned. This
+    // variable is initialized by saveAndRemoveProperties.
+    public static boolean isDirectMemoryPageAligned() {
+        return pageAlignDirectMemory;
+    }
+
     // A user-settable boolean to determine whether ClassLoader.loadClass should
     // accept array syntax.  This value may be changed during VM initialization
     // via the system property "sun.lang.ClassLoader.allowArraySyntax".
@@ -252,6 +263,11 @@
             }
         }
 
+        // Check if direct buffers should be page aligned
+        s = (String)props.remove("sun.nio.PageAlignDirectMemory");
+        if ("true".equals(s))
+            pageAlignDirectMemory = true;
+
         // Set a boolean to determine whether ClassLoader.loadClass accepts
         // array syntax.  This value is controlled by the system property
         // "sun.lang.ClassLoader.allowArraySyntax".

--- a/jdk/test/java/nio/Buffer/LimitDirectMemory.sh	Mon Oct 18 09:00:28 2010 -0400
+++ b/jdk/test/java/nio/Buffer/LimitDirectMemory.sh	Mon Oct 18 09:05:49 2010 -0400
@@ -30,18 +30,7 @@
 # @build LimitDirectMemory
 # @run shell LimitDirectMemory.sh
 
-# set platform-dependent variable
-OS=`uname -s`
-case "$OS" in
-  SunOS | Linux ) TMP=/tmp ;;
-  Windows* ) TMP="c:/temp" ;;
-  * )
-    echo "Unrecognized system!"
-    exit 1;
-    ;;
-esac
-
-TMP1=${TMP}/tmp1_$$
+TMP1=tmp_$$
 
 runTest() {
   echo "Testing: $*"
@@ -82,18 +71,21 @@
 
 # Exactly the default amount of memory is available.
 runTest -cp ${TESTCLASSES} LimitDirectMemory false 10 1
-runTest -cp ${TESTCLASSES} LimitDirectMemory false 0 DEFAULT
-runTest -cp ${TESTCLASSES} LimitDirectMemory true 0 DEFAULT+1
+runTest -Xmx64m -cp ${TESTCLASSES} LimitDirectMemory false 0 DEFAULT
+runTest -Xmx64m -cp ${TESTCLASSES} LimitDirectMemory true 0 DEFAULT+1
 
 # We should be able to eliminate direct memory allocation entirely.
 runTest -XX:MaxDirectMemorySize=0 -cp ${TESTCLASSES} LimitDirectMemory true 0 1
 
 # Setting the system property should not work so we should be able to allocate
 # the default amount.
-runTest -Dsun.nio.MaxDirectMemorySize=1K -cp ${TESTCLASSES} \
+runTest -Dsun.nio.MaxDirectMemorySize=1K -Xmx64m -cp ${TESTCLASSES} \
   LimitDirectMemory false DEFAULT-1 DEFAULT/2
 
 # Various bad values fail to launch the VM.
 launchFail foo
 launchFail 10kmt
 launchFail -1
+
+# Clean-up
+rm ${TMP1}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/tools/pack200/AttributeTests.java	Mon Oct 18 09:05:49 2010 -0400
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2010, 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.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+/*
+ * @test
+ * @bug 6982312
+ * @summary tests various classfile format and attribute handling by pack200
+ * @compile -XDignore.symbol.file Utils.java AttributeTests.java
+ * @run main AttributeTests
+ * @author ksrini
+ */
+public class AttributeTests {
+
+    public static void main(String... args) throws Exception {
+        test6982312();
+        test6746111();
+    }
+    /*
+     * This is an interim test, which ensures pack200 handles JSR-292 related
+     * classfile changes seamlessly, until all the classfile changes in jdk7
+     * and jdk8 are fully supported. At that time this test should be jettisoned,
+     * along with the associated jar file.
+     *
+     * The jar file  contains sources and classes noting the classes were
+     * derived by using the javac from the lambda project,
+     * see http://openjdk.java.net/projects/lambda/.
+     * Therefore the classes contained in the jar cannot be compiled, using
+     * the standard jdk7's javac compiler.
+     */
+    static void test6982312() throws IOException {
+        String pack200Cmd = Utils.getPack200Cmd();
+        File dynJar = new File(".", "dyn.jar");
+        Utils.copyFile(new File(Utils.TEST_SRC_DIR, "dyn.jar"), dynJar);
+        File testJar = new File(".", "test.jar");
+        List<String> cmds = new ArrayList<String>();
+        cmds.add(pack200Cmd);
+        cmds.add("--repack");
+        cmds.add(testJar.getAbsolutePath());
+        cmds.add(dynJar.getAbsolutePath());
+        Utils.runExec(cmds);
+        /*
+         * compare the repacked jar bit-wise, as all the files
+         * should be transmitted "as-is".
+         */
+        Utils.doCompareBitWise(dynJar.getAbsoluteFile(), testJar.getAbsoluteFile());
+        testJar.delete();
+        dynJar.delete();
+    }
+
+    /*
+     * this test checks to see if we get the expected strings for output
+     */
+    static void test6746111() throws Exception {
+        String pack200Cmd = Utils.getPack200Cmd();
+        File badAttrJar = new File(".", "badattr.jar");
+        Utils.copyFile(new File(Utils.TEST_SRC_DIR, "badattr.jar"), badAttrJar);
+        File testJar = new File(".", "test.jar");
+        List<String> cmds = new ArrayList<String>();
+        cmds.add(pack200Cmd);
+        cmds.add("--repack");
+        cmds.add("-v");
+        cmds.add(testJar.getAbsolutePath());
+        cmds.add(badAttrJar.getAbsolutePath());
+        List<String> output = Utils.runExec(cmds);
+        /*
+         * compare the repacked jar bit-wise, as all the files
+         * should be transmitted "as-is".
+         */
+        Utils.doCompareBitWise(badAttrJar.getAbsoluteFile(), testJar.getAbsoluteFile());
+        String[] expectedStrings = {
+            "WARNING: Passing class file uncompressed due to unrecognized" +
+                    " attribute: Foo.class",
+            "INFO: com.sun.java.util.jar.pack.Attribute$FormatException: " +
+                    "class attribute \"XourceFile\":  is unknown attribute " +
+                    "in class Foo",
+            "INFO: com.sun.java.util.jar.pack.ClassReader$ClassFormatException: " +
+                    "AnnotationDefault: attribute length cannot be zero, in Test.message()",
+            "WARNING: Passing class file uncompressed due to unknown class format: Test.class"
+        };
+        List<String> notfoundList = new ArrayList<String>();
+        notfoundList.addAll(Arrays.asList(expectedStrings));
+        // make sure the expected messages are emitted
+        for (String x : output) {
+            findString(x, notfoundList, expectedStrings);
+        }
+        if (!notfoundList.isEmpty()) {
+            System.out.println("Not found:");
+            for (String x : notfoundList) {
+                System.out.println(x);
+            }
+            throw new Exception("Test fails: " + notfoundList.size() +
+                    " expected strings not found");
+        }
+        testJar.delete();
+        badAttrJar.delete();
+    }
+
+    private static void findString(String outputStr, List<String> notfoundList,
+            String[] expectedStrings) {
+        for (String y : expectedStrings) {
+            if (outputStr.contains(y)) {
+                notfoundList.remove(y);
+                return;
+            }
+        }
+    }
+}

Binary file jdk/test/tools/pack200/badattr.jar has changed

Binary file jdk/test/tools/pack200/dyn.jar has changed