Lambda class names no longer reported when listening for JVMTI_EVENT_CLASS_FILE_LOAD events

Frost, Gary Gary.Frost at amd.com
Wed Jan 22 14:33:39 PST 2014


Not sure when this change came about but I just started using

java version "1.8.0-ea"
Java(TM) SE Runtime Environment (build 1.8.0-ea-b124)

I noticed that the JVMTI agent I use to  listen for JVMTI_EVENT_CLASS_FILE_LOAD events is no longer seeing events for the dynamically create classes created to encapsulate 'captured' args.  Or possibly the class events are triggeted, but the 'name' is NULL. I am seeing an increase in the number of a events reported NULL as the name.

The Aparapi project listens for these events so we can determine the captured args for a given lambda.  These are the synthetic classes created on the fly by the method handle factory.

This had been working fine until recently.  Is there a reason we would stop generating  these, or is this just a regression?

Gary


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