8028280: ParkEvent leak when running modified runThese which only loads classes Summary: Use spin lock to manage ParkEvent and PlatformEvent free lists. Reviewed-by: dholmes, fparain

8031427: AllocObject and Unsafe.allocateInstance segfault for primitive types Summary: The fix just throws an InstantiationException if the Klass is NULL. Reviewed-by: coleenp, twisti, jrose Contributed-by: gdub <duboscq@ssw.jku.at>

Merge

6651256: jstack: DeleteGlobalRef method call doesn't lead to descreasing of global refs count shown by jstack Summary: jni_DeleteGlobalRef does not really release the jni handle, instead, set the handle point to JNIHandles::_deleted_handle which holds an oop instance (java/lang/Object) in Java heap and never be GC'ed. When counting number of global reference, it counts all the handles on the chain list, which includes the already deleted ones. Reviewed-by: zgu, sla, coleenp Contributed-by: yumin.qi@oracle.com

8032466: serviceability/sa/jmap-hashcode/Test8028623.java fails with compilation errors Reviewed-by: dsamersoff, sla

8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked. Summary: Make sure we only look for statically linked agents in the main process image Reviewed-by: dsamersoff, bpittore, dcubed

8032250: Add trace event for VM flag changes Reviewed-by: coleenp, ehelin, egahlin, mgronlun

Merge

8028623: SA: hash codes in SymbolTable mismatching java_lang_String::hash_code for extended characters. Reviewed-by: sla, dsamersoff

Merge