Application crashes in compiled code (HS 19 b09, fastdebug, -XX:-UseCompressedOops -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -Xcomp -XX:CompileThreshold=1 -XX:+UseCodeCacheFlushing -Xmx2097152K):

# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/BUILD_AREA/jdk6_23/hotspot/src/share/vm/runtime/sharedRuntime.cpp:119), pid=7545, tid=56
# assert(false) failed: should be optimized out

Current thread (0x000000010b791000): JavaThread "SpecJbb2005StressModule" [_thread_in_Java, id=56, stack(0xffffffff6bc00000,0xffffffff6bd00000)]

Stack: [0xffffffff6bc00000,0xffffffff6bd00000], sp=0xffffffff6bcfd6f0, free space=1013k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xfc4848];; void VMError::report_and_die()+0x780
V [libjvm.so+0x548bc0];; void report_vm_error(const char*,int,const char*,const char*)+0x78
V [libjvm.so+0xdb36a0];; void SharedRuntime::g1_wb_pre(oopDesc*,JavaThread*)+0x108
J spec.jbb.validity.PepTest.testDiv()Ljava/lang/String;
J spec.jbb.validity.PepTest.instanceMain()V
J spec.jbb.validity.Check.doCheck()Z
J spec.jbb.JBBmain.main([Ljava/lang/String;)V
v ~StubRoutines::call_stub
V [libjvm.so+0x79f1dc];; void JavaCalls::call_helper(JavaValue*,methodHandle*,JavaCallArguments*,Thread*)+0x75c
V [libjvm.so+0x79ea60];; void JavaCalls::call(JavaValue*,methodHandle,JavaCallArguments*,Thread*)+0x78
V [libjvm.so+0xd67e70];; oop Reflection::invoke(instanceKlassHandle,methodHandle,Handle,bool,objArrayHandle,BasicType,objArrayHandle,bool,Thread*)+0x32f0
V [libjvm.so+0xd75e44];; oop Reflection::invoke_method(oop,Handle,objArrayHandle,Thread*)+0x9c4
V [libjvm.so+0x8eca98];; JVM_InvokeMethod+0x430
C [libjava.so+0x1a9b4];; Java_sun_reflect_NativeMethodAccessorImpl_invoke0+0x18
J sun.reflect.NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
J sun.reflect.NativeMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
J sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
J java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;
J jrockit.qa.stress.kitchensink.process.stress.modules.SpecJbb2005StressModule.execute()V
j jrockit.qa.stress.kitchensink.process.stress.modules.StressModule.run()V+128
v ~StubRoutines::call_stub
V [libjvm.so+0x79f1dc];; void JavaCalls::call_helper(JavaValue*,methodHandle*,JavaCallArguments*,Thread*)+0x75c
V [libjvm.so+0x79d7e4];; void JavaCalls::call_virtual(JavaValue*,KlassHandle,symbolHandle,symbolHandle,JavaCallArguments*,Thread*)+0x4bc
V [libjvm.so+0x79d95c];; void JavaCalls::call_virtual(JavaValue*,Handle,KlassHandle,symbolHandle,symbolHandle,Thread*)+0xd4
V [libjvm.so+0x8c4a34];; void thread_entry(JavaThread*,Thread*)+0x1c4
V [libjvm.so+0xee89d0];; void JavaThread::thread_main_inner()+0x168
V [libjvm.so+0xee8848];; void JavaThread::run()+0x360
V [libjvm.so+0xc843cc];; java_start+0x194