6982312: (pack200) pack200 fails with the jdk7 class files

Reviewed-by: jrose

src/share/classes/com/sun/java/util/jar/pack/ClassReader.java

@@ -246,7 +246,9 @@ class ClassReader implements Constants {
                     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);
             }
         }
 
@@ -415,7 +417,12 @@ class ClassReader implements Constants {
                 if (a.name() == "Code") {
                     Class.Method m = (Class.Method) h;
                     m.code = new Code(m);
+                    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);
@@ -438,6 +445,7 @@ class ClassReader implements Constants {
         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 +471,10 @@ class ClassReader implements Constants {
         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);
+        }
+    }
 }

src/share/classes/com/sun/java/util/jar/pack/Instruction.java

@@ -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 @@ class Instruction implements Constants {
             }
         }
     }
+
+    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);
+        }
+    }
 }

src/share/classes/com/sun/java/util/jar/pack/PackerImpl.java

@@ -496,15 +496,29 @@ public class PackerImpl  extends TLGlobals implements Pack200.Packer {
             reader.unknownAttrCommand = unknownAttrCommand;
             try {
                 reader.read();
-            } catch (Attribute.FormatException ee) {
+            } 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.warning("Passing class file uncompressed due to unrecognized attribute: "+fname);
                         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;

src/share/classes/com/sun/java/util/jar/pack/Utils.java

@@ -182,11 +182,8 @@ class Utils {
         }
 
         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);

test/tools/pack200/AttributeTests.java

+/*
+ * 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.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();
+    }
+    /*
+     * 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();
+    }
+}