Near-term action items:

• DONE: OMWorld (external object to ObjectMonitor mapping): Combine LM_PLACEHOLDER into LM_LIGHTWEIGHT
  • The intention is that the OMWorld locking implementation will replace the Lightweigt locking. It will either go in with Lilliput or extracted into a separate, stand-alone RFE
  • Note: this means that the OMWorld implementation will still be used when the user runs with `-XX:-UseCompactObjectHeaders`
  • Owner: Axel
• DONE: Create a "patch queue" of all changes and maintain those patches as the top-most changes in https://github.com/openjdk/lilliput/tree/master
  • This will help
  • The "patch queue" will be rebased whenever the upstream (openjdk/jdk) is merged.
    • This will use non-destructive rebasing with "git merge -s ours", which "forgets" the old "patch queue"
  • Example patch queue:

    • * 4363dd8a1ef (HEAD -> lilliput-all, lilliput-stefank/lilliput-all) OMWorld Lilliput changes
      * 916d0958a7f JDK-8325104: Lilliput: Shrink Classpointers
      * 1346db1b546 Lilliput: Compact object headers
      * 8fb10dc6f1d 8305898: Alternative self-forwarding mechanism
      * 3726027944e 8305896: Alternative full GC forwarding
      * c1f2dfb8735 OMWorld
      * 998d0baab0f (tag: jdk-23+12, lilliput/jdk) 8324799: Use correct extension for C++ test headers

  • Owner: Roman

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