Please, review the Jigsaw-related fix for:
https://bugs.openjdk.java.net/browse/JDK-8153749
Hotspot webrev:
http://cr.openjdk.java.net/~sspitsyn/webrevs/2016/hotspot/8153749-Jigsaw-newcap.hs1/
Jdk webrev:
http://cr.openjdk.java.net/~sspitsyn/webrevs/2016/jdk/8153749-Jigsaw-newcap.jdk1/
Summary:
This is a Jigsaw related enhancement.
Some agents need to get a CFLH event for classes loaded in the
primordial phase.
This is not possible in JDK 9 because existing agents may instrument
code in the
primordial or start phase before the module system has completed
initialization.
We introduce a new capability: can_generate_early_class_hook_events.
If this capability and can_generate_all_class_hook_events are
enabled then
the CFLH event could be posted for classes loaded in the primordial
phase.
We leave can_generate_early_vmstart as is, no changes.
This enhancement needs a CCC request filed.
I will file it once the JVMTI spec changes are reviewed.
Testing:
Altered the nsk.jvmti co-located test
nsk/jvmti/ClassFileLoadHook/classfloadhk002
to enable the can_generate_early_class_hook_events and checked that
new CFLH events
are posted in the primordial phase and also they are not posted
otherwise.
Thanks,
Serguei
