RFR (S) 7060111 : race condition in VMError::report_and_die()

[frederic parain]

Please review this small fix:

http://cr.openjdk.java.net/~fparain/7060111/webrev.00/

Bug: 7060111 : race condition in VMError::report_and_die()

https://jbs.oracle.com/bugs/browse/JDK-7060111

The bug is well described in its report. This fix uses
class static fields initialized at library load time
instead of static local variables lazily initialized.

Test:

The race condition is so tricky (2 threads must invoke
VMError::report_and_die() almost at the same time), that I
didn't try to produce a unit test for it. But the fix is
so simple that it doesn't look risky.

Thanks,

Fred

-- 
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: Frederic.Parain at oracle.com