[jdk17u-dev] RFR: 8303069: Memory leak in CompilerOracle::parse_from_line

[Goetz Lindenmaier]

I backport this for parity with 17.0.8-oracle.

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Commit messages:
 - Backport 384a8b85a7266b920242ea73baf578577ca588ec

Changes: https://git.openjdk.org/jdk17u-dev/pull/1310/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1310&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303069
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1310.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1310/head:pull/1310

PR: https://git.openjdk.org/jdk17u-dev/pull/1310