[jdk21u-dev] RFR: 8342823: Ubsan: ciEnv.cpp:1614:65: runtime error: member call on null pointer of type 'struct CompileTask'

[Matthias Baesken]

8342823: Ubsan: ciEnv.cpp:1614:65: runtime error: member call on null pointer of type 'struct CompileTask'

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Commit messages:
 - Backport beff8bfe2a5334823b67cb748bc8652dc6a3f3d4

Changes: https://git.openjdk.org/jdk21u-dev/pull/1151/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1151&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342823
  Stats: 6 lines in 2 files changed: 2 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1151.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1151/head:pull/1151

PR: https://git.openjdk.org/jdk21u-dev/pull/1151