[lworld] RFR: 8362252: [lworld] Possible synchronization issue in jdk/internal/jimage/ImageReader.java

[David Beaumont]

Tidying up syncrhonization around shared image.

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Commit messages:
 - Tidying up syncrhonization around shared image

Changes: https://git.openjdk.org/valhalla/pull/1828/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1828&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8362252
  Stats: 26 lines in 1 file changed: 8 ins; 4 del; 14 mod
  Patch: https://git.openjdk.org/valhalla/pull/1828.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1828/head:pull/1828

PR: https://git.openjdk.org/valhalla/pull/1828