Product VM with NPG changes crashes in Klass*Dependencies::DepStream::check_klass_dependency(KlassDepChange*) on solaris-x64 when -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation are used.

Stack trace:
V [libjvm.so+0x91367a] Klass*Dependencies::DepStream::check_klass_dependency(KlassDepChange*)+0xc7e
V [libjvm.so+0x7bdc47] void ciEnv::validate_compile_task_dependencies(ciMethod*)+0x113
V [libjvm.so+0x7bde97] void ciEnv::register_method(ciMethod*,int,CodeOffsets*,int,CodeBuffer*,int,OopMapSet*,ExceptionHandlerTable*,ImplicitExceptionTable*,A
bstractCompiler*,int,bool)+0x1d7
V [libjvm.so+0x67c082] Compilation::Compilation(AbstractCompiler*,ciEnv*,ciMethod*,int,BufferBlob*)+0x8ea
V [libjvm.so+0x67cd8f] void Compiler::compile_method(ciEnv*,ciMethod*,int)+0x177
V [libjvm.so+0x87d73b] void CompileBroker::invoke_compiler_on_method(CompileTask*)+0xaaf
V [libjvm.so+0x87c49a] void CompileBroker::compiler_thread_loop()+0xac6
V [libjvm.so+0x10f8729] void JavaThread::run()+0x4cd
V [libjvm.so+0xf024d6] java_start+0x9d2
C [libc.so.1+0xd704b] _thr_setup+0x5b
C [libc.so.1+0xd7280] ht_pause+0x10