RFR: 8202095: JFR TestBiasedLockRevocationEvents should cope with multiple events during a single safepoint

[Robin Westberg]

Hi all,

Please review the following test case fix for the TestBiasedLockRevocationEvents test. It was possible that the test could fail if several revocations occurred during a single safepoint, which can occur during stress testing.

Issue: https://bugs.openjdk.java.net/browse/JDK-8202095
Webrev: http://cr.openjdk.java.net/~rwestberg/8202095/webrev.00/ <http://cr.openjdk.java.net/~rwestberg/8202095/webrev.00/>
Testing: linux-x64, macosx-x64, solaris-sparcv9, windows-x64: open/test/jdk/jdk/jfr/event/*

(Think I got the issue number right this time).

Best regards,
Robin