8033528: assert(0 <= i && i < length()) failed: index out of bounds

Summary: Restoring bytecodes for invokedynamic had wrong index calculation added testing stress option.
Reviewed-by: twisti, hseigel

hotspot/src/share/vm/interpreter/rewriter.cpp

 /*
- * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -250,8 +250,8 @@ void Rewriter::rewrite_invokedynamic(address bcp, int offset, bool reverse) {
     // We will reverse the bytecode rewriting _after_ adjusting them.
     // Adjust the cache index by offset to the invokedynamic entries in the
     // cpCache plus the delta if the invokedynamic bytecodes were adjusted.
-    cache_index = cp_cache_delta() + _first_iteration_cp_cache_limit;
-    int cp_index = invokedynamic_cp_cache_entry_pool_index(cache_index);
+    int adjustment = cp_cache_delta() + _first_iteration_cp_cache_limit;
+    int cp_index = invokedynamic_cp_cache_entry_pool_index(cache_index - adjustment);
     assert(_pool->tag_at(cp_index).is_invoke_dynamic(), "wrong index");
     // zero out 4 bytes
     Bytes::put_Java_u4(p, 0);
@@ -453,18 +453,7 @@ methodHandle Rewriter::rewrite_jsrs(methodHandle method, TRAPS) {
   return method;
 }
 
-void Rewriter::rewrite(instanceKlassHandle klass, TRAPS) {
-  ResourceMark rm(THREAD);
-  Rewriter     rw(klass, klass->constants(), klass->methods(), CHECK);
-  // (That's all, folks.)
-}
-
-
-Rewriter::Rewriter(instanceKlassHandle klass, constantPoolHandle cpool, Array<Method*>* methods, TRAPS)
-  : _klass(klass),
-    _pool(cpool),
-    _methods(methods)
-{
+void Rewriter::rewrite_bytecodes(TRAPS) {
   assert(_pool->cache() == NULL, "constant pool cache must not be set yet");
 
   // determine index maps for Method* rewriting
@@ -508,6 +497,29 @@ Rewriter::Rewriter(instanceKlassHandle klass, constantPoolHandle cpool, Array<Me
   // May have to fix invokedynamic bytecodes if invokestatic/InterfaceMethodref
   // entries had to be added.
   patch_invokedynamic_bytecodes();
+}
+
+void Rewriter::rewrite(instanceKlassHandle klass, TRAPS) {
+  ResourceMark rm(THREAD);
+  Rewriter     rw(klass, klass->constants(), klass->methods(), CHECK);
+  // (That's all, folks.)
+}
+
+
+Rewriter::Rewriter(instanceKlassHandle klass, constantPoolHandle cpool, Array<Method*>* methods, TRAPS)
+  : _klass(klass),
+    _pool(cpool),
+    _methods(methods)
+{
+
+  // Rewrite bytecodes - exception here exits.
+  rewrite_bytecodes(CHECK);
+
+  // Stress restoring bytecodes
+  if (StressRewriter) {
+    restore_bytecodes();
+    rewrite_bytecodes(CHECK);
+  }
 
   // allocate constant pool cache, now that we've seen all the bytecodes
   make_constant_pool_cache(THREAD);
@@ -523,6 +535,7 @@ Rewriter::Rewriter(instanceKlassHandle klass, constantPoolHandle cpool, Array<Me
   // so methods with jsrs in custom class lists in aren't attempted to be
   // rewritten in the RO section of the shared archive.
   // Relocated bytecodes don't have to be restored, only the cp cache entries
+  int len = _methods->length();
   for (int i = len-1; i >= 0; i--) {
     methodHandle m(THREAD, _methods->at(i));
 

hotspot/src/share/vm/interpreter/rewriter.hpp

 /*
- * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -199,6 +199,9 @@ class Rewriter: public StackObj {
 
   void patch_invokedynamic_bytecodes();
 
+  // Do all the work.
+  void rewrite_bytecodes(TRAPS);
+
   // Revert bytecodes in case of an exception.
   void restore_bytecodes();
 

hotspot/src/share/vm/oops/constantPool.cpp

@@ -82,6 +82,9 @@ ConstantPool::ConstantPool(Array<u1>* tags) {
 void ConstantPool::deallocate_contents(ClassLoaderData* loader_data) {
   MetadataFactory::free_metadata(loader_data, cache());
   set_cache(NULL);
+  MetadataFactory::free_array<u2>(loader_data, reference_map());
+  set_reference_map(NULL);
+
   MetadataFactory::free_array<jushort>(loader_data, operands());
   set_operands(NULL);
 

hotspot/src/share/vm/runtime/globals.hpp

 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
@@ -1260,6 +1260,9 @@ class CommandLineFlags {
   develop(bool, TraceJNICalls, false,                                       \
           "Trace JNI calls")                                                \
                                                                             \
+  develop(bool, StressRewriter, false,                                      \
+          "Stress linktime bytecode rewriting")                             \
+                                                                            \
   notproduct(bool, TraceJVMCalls, false,                                    \
           "Trace JVM calls")                                                \
                                                                             \

hotspot/src/share/vm/utilities/array.hpp

 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -58,7 +58,7 @@ class ResourceArray: public ResourceObj {
 
   void initialize(size_t esize, int length) {
     assert(length >= 0, "illegal length");
-    assert(_data == NULL, "must be new object");
+    assert(StressRewriter || _data == NULL, "must be new object");
     _length  = length;
     _data    = resource_allocate_bytes(esize * length);
     DEBUG_ONLY(init_nesting();)

hotspot/test/runtime/lambda-features/InvokespecialInterface.java

@@ -26,8 +26,9 @@
  * @test
  * @bug 8032024
  * @bug 8025937
+ * @bug 8033528
  * @summary [JDK 8] Test invokespecial and invokeinterface with the same JVM_CONSTANT_InterfaceMethodref
- * @run main InvokespecialInterface
+ * @run main/othervm -XX:+StressRewriter InvokespecialInterface
  */
 import java.util.function.*;
 import java.util.*;