Regression after 7125896 changes.

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/tmp/jprt/P1/213046.vkozlov/source/src/share/vm/opto/locknode.cpp:138), pid=7867, tid=16
# assert(obj_node == obj) failed:
#
# JRE version: 7.0_04-b06
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.0-b10-internal-201201072130.vkozlov.7125896-fastdebug compiled mode solaris-amd64 )
# Core dump written. Default location: /export/local/57377.JDK7.NIGHTLY.VM_solaris-amd64_javase_server_comp_JT_HS/results/workDir/closed/compiler/5043395/T5043395/core or core.7867
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x0000000000fc4800): JavaThread "C2 CompilerThread1" daemon [_thread_in_native, id=16, stack(0xfffffd7ffdead000,0xfffffd7ffdfad000)]

Stack: [0xfffffd7ffdead000,0xfffffd7ffdfad000], sp=0xfffffd7ffdfa31e0, free space=984k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x2779f04] void VMError::report(outputStream*)+0x8c8;; void VMError::report(outputStream*)+0x8c8
V [libjvm.so+0x277b049] void VMError::report_and_die()+0x4fd;; void VMError::report_and_die()+0x4fd
V [libjvm.so+0xee5033] void report_vm_error(const char*,int,const char*,const char*)+0x55f;; void report_vm_error(const char*,int,const char*,const char*)+0x55f
V [libjvm.so+0x1db0638] bool BoxLockNode::is_simple_lock_region(LockNode**,Node*)+0x834;; bool BoxLockNode::is_simple_lock_region(LockNode**,Node*)+0x834
V [libjvm.so+0xae1c84] bool LockNode::is_nested_lock_region()+0x80;; bool LockNode::is_nested_lock_region()+0x80
V [libjvm.so+0x1e7d2ce] bool PhaseMacroExpand::expand_macro_nodes()+0x296;; bool PhaseMacroExpand::expand_macro_nodes()+0x296
V [libjvm.so+0xd416a4] void Compile::Optimize()+0x1df0;; void Compile::Optimize()+0x1df0
V [libjvm.so+0xd37990] Compile::Compile(ciEnv*,C2Compiler*,ciMethod*,int,bool,bool)+0x14c4;; Compile::Compile(ciEnv*,C2Compiler*,ciMethod*,int,bool,bool)+0x14c4
V [libjvm.so+0xabb897] void C2Compiler::compile_method(ciEnv*,ciMethod*,int)+0x16b;; void C2Compiler::compile_method(ciEnv*,ciMethod*,int)+0x16b
V [libjvm.so+0xd5fe33] void CompileBroker::invoke_compiler_on_method(CompileTask*)+0x14cb;; void CompileBroker::invoke_compiler_on_method(CompileTask*)+0x14cb
V [libjvm.so+0xd5dd0b] void CompileBroker::compiler_thread_loop()+0xc8f;; void CompileBroker::compiler_thread_loop()+0xc8f
V [libjvm.so+0x2637844] void JavaThread::thread_main_inner()+0x4d4;; void JavaThread::thread_main_inner()+0x4d4
V [libjvm.so+0x2637156] void JavaThread::run()+0x61e;; void JavaThread::run()+0x61e
V [libjvm.so+0x21d5a9a] java_start+0x6a6;; java_start+0x6a6
C [libc.so.1+0x121021] _thrp_setup+0xa5;; _thrp_setup+0xa5
C [libc.so.1+0x1212c0] _lwp_start+0x0;; _lwp_start+0x0


Current CompileTask:
C2: 7360 1402 !b 4 PreparedStatement::executeBatch (195 bytes)