RFR: 8266496: WBIsKlassAliveClosure.do_klass() fails for hidden classes

Harold Seigel hseigel at openjdk.java.net
Wed May 5 13:00:18 UTC 2021


Please review this small fix for JDK-8266496.  The fix changes WBIsKlassAliveClosure.do_klass() so that when it compares the specified name with the name of a hidden class, it truncates the hidden class's name at the first '+' character before doing the comparison.  This should work except in the rare case when the pre-mangled hidden class name contains a '+' character.

The fix was tested with Mach5 tiers 1 and 2 on Linux, Mac OS, and Windows, and tiers 3-5 on Linux x64.

Thanks, Harold

-------------

Commit messages:
 - 8266496: WBIsKlassAliveClosure.do_klass() fails for hidden classes

Changes: https://git.openjdk.java.net/jdk/pull/3882/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3882&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266496
  Stats: 107 lines in 2 files changed: 107 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3882.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3882/head:pull/3882

PR: https://git.openjdk.java.net/jdk/pull/3882


More information about the hotspot-runtime-dev mailing list