trace_bytecode

[yumin qi]

Hi,

  In JDK8/hotspot: sharedRuntime.cpp, there is an embedded macro checking:

#ifndef PRODUCT

JRT_ENTRY(intptr_t, SharedRuntime::trace_bytecode(JavaThread* thread,
intptr_t preserve_this_value, intptr_t tos, intptr_t tos2))

  const frame f = thread->last_frame();

  assert(f.is_interpreted_frame(), "must be an interpreted frame");

#ifndef PRODUCT

  methodHandle mh(THREAD, f.interpreter_frame_method());

  BytecodeTracer::trace(mh, f.interpreter_frame_bcp(), tos, tos2);

#endif // !PRODUCT

  return preserve_this_value;

JRT_END

#endif // !PRODUCT

It looks not necessary --- JDK9 has changed.

I could not file bug (still could not logon to bugjira), could someone file
a bug for it?

Thanks

Yumin