Request for review: 7006471: fix for 6988439 crashes when pending list lock is null

[Vladimir Kozlov]

Good.

Vladimir

coleen phillimore wrote:
> Summary: missing null check in owns_pending_list_lock() because this can 
> be called before pending_list_lock is initialized.
> 
> Tested with -XX:CompileThreshold=10 a bunch of mixed tests plus the 
> failing test case.
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/7006471/
> bug link at http://bugs.sun.com/view_bug.do?bug_id=7006471
> 
> Thanks,
> Coleen