Hi all, Many JVMTI functions uses VM Operation to get information. However some of them need to stop only one thread - they don't need to stop all threads. So I think we can use Thread Local Handshake as this webrev. It is example for GetOneCurrentContendedMonitor().
http://cr.openjdk.java.net/~ysuenaga/jvmti-thread-local-handshake/ Also I think we can replace following VM Operations to Thread Local Handshake: class VM_GetCurrentLocation class VM_EnterInterpOnlyMode class VM_UpdateForPopTopFrame class VM_SetFramePop class VM_GetOwnedMonitorInfo class VM_GetCurrentContendedMonitor class VM_GetFrameCount class VM_GetFrameLocation What do you think? It it is acceptable, I will file it to JBS and send review request. Thanks, Yasumasa
