[master] RFR: OMWorld: Fix javaVFrame::print_lock_info_on

Mon Apr 22 12:33:45 UTC 2024

OMWorld: `Fix javaVFrame::print_lock_info_on` printing. If the ObjectMonitor is `nullptr` and the header is `has_monitor` then we must be in the process of locking. (We cannot have locked, as that would have prevented deflation). 

This commit is currently based on ffc4c2fd5ba1c28432a5d5e84b8ada95fba7eeb8 without a merge. So GHA is not tested with lilliput. As long as this is mergable without conflicts (and no manual merge is performed) it will also be possible to move this commit down below lilliput on-top of OMWorld directly.

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Commit messages:
 - OMWorld: Fix javaVFrame::print_lock_info_on

Changes: https://git.openjdk.org/lilliput/pull/158/files
  Webrev: https://webrevs.openjdk.org/?repo=lilliput&pr=158&range=00
  Stats: 4 lines in 1 file changed: 2 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/lilliput/pull/158.diff
  Fetch: git fetch https://git.openjdk.org/lilliput.git pull/158/head:pull/158

PR: https://git.openjdk.org/lilliput/pull/158