There is an incorrect assert in the function JvmtiThreadState::update_for_pop_top_frame(). The assumption is that the interp_only_mode has to be set if the JVMTI_EVENT_FRAME_POP event is enabled. This is overly strong. The JVMTI SetEventNotificationMode enables events and then submits a Handshake to enable interp_only_mode to support the events. So, there is a gap between enabling the events and enabling the interp_only_mode.