--- old/src/share/vm/runtime/vframe.cpp Wed Jul 15 12:27:42 2015 +++ new/src/share/vm/runtime/vframe.cpp Wed Jul 15 12:27:41 2015 @@ -235,12 +235,14 @@ // disable the extra printing below. mark = NULL; } - } else if (frame_count != 0) { + } else if (frame_count != 0 && ObjectMonitor::Knob_Verbose) { // This is not the first frame so we either own this monitor // or we owned the monitor before and called wait(). Because // wait() could have been called on any monitor in a lower // numbered frame on the stack, we have to check all the // monitors on the list for this frame. + // Note: Only enable this new output line in verbose mode + // since existing tests are not ready for it. mark = monitor->owner()->mark(); if (mark->has_monitor() && ( // we have marked ourself as pending on this monitor