Hello, Recently, after backporting JDK-8233197 to JDK8u I received a report from Sergey Nazarkin (cc) that the backport broke JVMTI spec basically emitting JVMTI_EVENT_THREAD_START events in primordial phase while the spec states that it should be emitted only in either start or live phase.
But if I am reading this correctly (https://hg.openjdk.java.net/jdk8u/jdk8udev/hotspot/file/02b4fd2f9041/src/share/vm/prims/jvmtiEventController.cpp#l418) the spec is also violated there. EARLY_EVENT_BITS are including THREAD_START_BIT and it is not filtered out by THREAD_FILTERED_EVENT_BITS so it seems perfectly valid for JVMTI_EVENT_THREAD_START to appear during PRIMORDIAL phase. So I would like to get clarification before going in and start tinkering with the JVM initialization code order. Thanks! -JB-
