Hello,
This code modifies the way that JVMTI compiled-method-load events are posted. Previously, they were posted directly from the compiler thread, which could cause issues if the JVMTI event handling code made calls to RedefineClasses, since the compiler thread is unable to load classes if that is required. This solution is to defer the posting of the events to the Service thread (formerly: LowMemoryDetector thread) which is a Java thread and is able to load classes.
The "Service thread" now handles both low-memory detection and JVMTI deferred event posting. I left the door open for other types of events to be deferred and posted via this mechanism in case we find other situations where posting events from a non-Java thread causes problems.
webrev: http://cr.openjdk.java.net/~kamg/6766644/webrev.01/ -- - Keith
