7174978: NPG: Fix bactrace builder for class redefinition

Summary: Remove Method* from backtrace but save version so redefine classes doesn't give inaccurate line numbers.  Removed old Merlin API with duplicate code.
Reviewed-by: dholmes, sspitsyn

make/bsd/makefiles/mapfile-vers-debug

@@ -3,7 +3,7 @@
 #
 
 #
-# Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -205,7 +205,6 @@ SUNWprivate_1.1 {
                 JVM_NewMultiArray;
                 JVM_OnExit;
                 JVM_Open;
-                JVM_PrintStackTrace;
                 JVM_RaiseSignal;
                 JVM_RawMonitorCreate;
                 JVM_RawMonitorDestroy;

make/bsd/makefiles/mapfile-vers-product

@@ -3,7 +3,7 @@
 #
 
 #
-# Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -205,7 +205,6 @@ SUNWprivate_1.1 {
                 JVM_NewMultiArray;
                 JVM_OnExit;
                 JVM_Open;
-                JVM_PrintStackTrace;
                 JVM_RaiseSignal;
                 JVM_RawMonitorCreate;
                 JVM_RawMonitorDestroy;

make/linux/makefiles/mapfile-vers-debug

 #
-# Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -201,7 +201,6 @@ SUNWprivate_1.1 {
                 JVM_NewMultiArray;
                 JVM_OnExit;
                 JVM_Open;
-                JVM_PrintStackTrace;
                 JVM_RaiseSignal;
                 JVM_RawMonitorCreate;
                 JVM_RawMonitorDestroy;

make/linux/makefiles/mapfile-vers-product

 #
-# Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -201,7 +201,6 @@ SUNWprivate_1.1 {
                 JVM_NewMultiArray;
                 JVM_OnExit;
                 JVM_Open;
-                JVM_PrintStackTrace;
                 JVM_RaiseSignal;
                 JVM_RawMonitorCreate;
                 JVM_RawMonitorDestroy;

make/solaris/makefiles/mapfile-vers

 #
-# Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -201,7 +201,6 @@ SUNWprivate_1.1 {
                 JVM_NewMultiArray;
                 JVM_OnExit;
                 JVM_Open;
-                JVM_PrintStackTrace;
                 JVM_RaiseSignal;
                 JVM_RawMonitorCreate;
                 JVM_RawMonitorDestroy;

src/share/vm/classfile/javaClasses.hpp

 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -469,8 +469,7 @@ class java_lang_Throwable: AllStatic {
   static int static_unassigned_stacktrace_offset;
 
   // Printing
-  static char* print_stack_element_to_buffer(Method* method, int bci);
-  static void print_to_stream(Handle stream, const char* str);
+  static char* print_stack_element_to_buffer(Handle mirror, int method, int version, int bci);
   // StackTrace (programmatic access, new since 1.4)
   static void clear_stacktrace(oop throwable);
   // No stack trace available
@@ -490,12 +489,9 @@ class java_lang_Throwable: AllStatic {
   static oop message(oop throwable);
   static oop message(Handle throwable);
   static void set_message(oop throwable, oop value);
-  // Print stack trace stored in exception by call-back to Java
-  // Note: this is no longer used in Merlin, but we still suppport
-  // it for compatibility.
-  static void print_stack_trace(oop throwable, oop print_stream);
-  static void print_stack_element(Handle stream, Method* method, int bci);
-  static void print_stack_element(outputStream *st, Method* method, int bci);
+  static void print_stack_element(outputStream *st, Handle mirror, int method,
+                                  int version, int bci);
+  static void print_stack_element(outputStream *st, methodHandle method, int bci);
   static void print_stack_usage(Handle stream);
 
   // Allocate space for backtrace (created but stack trace not filled in)
@@ -1263,7 +1259,8 @@ class java_lang_StackTraceElement: AllStatic {
   static void set_lineNumber(oop element, int value);
 
   // Create an instance of StackTraceElement
-  static oop create(methodHandle m, int bci, TRAPS);
+  static oop create(Handle mirror, int method, int version, int bci, TRAPS);
+  static oop create(methodHandle method, int bci, TRAPS);
 
   // Debugging
   friend class JavaClasses;

src/share/vm/oops/constantPool.cpp

 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -66,7 +66,7 @@ ConstantPool::ConstantPool(Array<u1>* tags) {
   set_pool_holder(NULL);
   set_flags(0);
   // only set to non-zero if constant pool is merged by RedefineClasses
-  set_orig_length(0);
+  set_version(0);
   set_lock(new Monitor(Monitor::nonleaf + 2, "A constant pool lock"));
   // all fields are initialized; needed for GC
   set_on_stack(false);

src/share/vm/oops/constantPool.hpp

 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -103,8 +103,8 @@ class ConstantPool : public Metadata {
   union {
     // set for CDS to restore resolved references
     int                _resolved_reference_length;
-  // only set to non-zero if constant pool is merged by RedefineClasses
-  int                  _orig_length;
+    // keeps version number for redefined classes (used in backtrace)
+    int                _version;
   } _saved;
 
   Monitor*             _lock;
@@ -784,8 +784,11 @@ class ConstantPool : public Metadata {
   static void copy_cp_to_impl(constantPoolHandle from_cp, int start_i, int end_i, constantPoolHandle to_cp, int to_i, TRAPS);
   static void copy_entry_to(constantPoolHandle from_cp, int from_i, constantPoolHandle to_cp, int to_i, TRAPS);
   int  find_matching_entry(int pattern_i, constantPoolHandle search_cp, TRAPS);
-  int  orig_length() const                { return _saved._orig_length; }
-  void set_orig_length(int orig_length)   { _saved._orig_length = orig_length; }
+  int  version() const                    { return _saved._version; }
+  void set_version(int version)           { _saved._version = version; }
+  void increment_and_save_version(int version) {
+    _saved._version = version >= 0 ? version++ : version;  // keep overflow
+  }
 
   void set_resolved_reference_length(int length) { _saved._resolved_reference_length = length; }
   int  resolved_reference_length() const  { return _saved._resolved_reference_length; }

src/share/vm/prims/jvm.cpp

 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -484,15 +484,6 @@ JVM_ENTRY(void, JVM_FillInStackTrace(JNIEnv *env, jobject receiver))
 JVM_END
 
 
-JVM_ENTRY(void, JVM_PrintStackTrace(JNIEnv *env, jobject receiver, jobject printable))
-  JVMWrapper("JVM_PrintStackTrace");
-  // Note: This is no longer used in Merlin, but we still support it for compatibility.
-  oop exception = JNIHandles::resolve_non_null(receiver);
-  oop stream    = JNIHandles::resolve_non_null(printable);
-  java_lang_Throwable::print_stack_trace(exception, stream);
-JVM_END
-
-
 JVM_ENTRY(jint, JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable))
   JVMWrapper("JVM_GetStackTraceDepth");
   oop exception = JNIHandles::resolve(throwable);

src/share/vm/prims/jvm.h

 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -212,9 +212,6 @@ JVM_IsNaN(jdouble d);
 JNIEXPORT void JNICALL
 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 
-JNIEXPORT void JNICALL
-JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
-
 JNIEXPORT jint JNICALL
 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
 

src/share/vm/prims/jvmtiRedefineClasses.cpp

 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1334,20 +1334,8 @@ jvmtiError VM_RedefineClasses::merge_cp_and_rewrite(
     return JVMTI_ERROR_INTERNAL;
   }
 
-  int orig_length = old_cp->orig_length();
-  if (orig_length == 0) {
-    // This old_cp is an actual original constant pool. We save
-    // the original length in the merged constant pool so that
-    // merge_constant_pools() can be more efficient. If a constant
-    // pool has a non-zero orig_length() value, then that constant
-    // pool was created by a merge operation in RedefineClasses.
-    merge_cp->set_orig_length(old_cp->length());
-  } else {
-    // This old_cp is a merged constant pool from a previous
-    // RedefineClasses() calls so just copy the orig_length()
-    // value.
-    merge_cp->set_orig_length(old_cp->orig_length());
-  }
+  // Update the version number of the constant pool
+  merge_cp->increment_and_save_version(old_cp->version());
 
   ResourceMark rm(THREAD);
   _index_map_count = 0;
@@ -2421,12 +2409,13 @@ void VM_RedefineClasses::set_new_constant_pool(
   // worst case merge situation. We want to associate the minimum
   // sized constant pool with the klass to save space.
   constantPoolHandle smaller_cp(THREAD,
-    ConstantPool::allocate(loader_data, scratch_cp_length,
-                                   THREAD));
-    // preserve orig_length() value in the smaller copy
-    int orig_length = scratch_cp->orig_length();
-    assert(orig_length != 0, "sanity check");
-    smaller_cp->set_orig_length(orig_length);
+          ConstantPool::allocate(loader_data, scratch_cp_length, THREAD));
+
+  // preserve version() value in the smaller copy
+  int version = scratch_cp->version();
+  assert(version != 0, "sanity check");
+  smaller_cp->set_version(version);
+
   scratch_cp->copy_cp_to(1, scratch_cp_length - 1, smaller_cp, 1, THREAD);
   scratch_cp = smaller_cp;