The change fixes a 'deadlock' situation in VM_RedefineClasses::lock_classes() when the current thread is in the middle of redefining the same class. The change is based on the fix [1] suggested in the Jira issue [2] comment.
[1] http://cr.openjdk.java.net/~jiangli/8241390/webrev.00/ [2] https://bugs.openjdk.java.net/browse/JDK-8241390 Testing: :jdk_instrument, tier1-tier3, and tier5 tests pass. ------------- Commit messages: - 8241390: 'Deadlock' with VM_RedefineClasses::lock_classes() Changes: https://git.openjdk.java.net/jdk/pull/190/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=190&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8241390 Stats: 202 lines in 6 files changed: 193 ins; 0 del; 9 mod Patch: https://git.openjdk.java.net/jdk/pull/190.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/190/head:pull/190 PR: https://git.openjdk.java.net/jdk/pull/190