[jdk17u-dev] RFR: 8292214: Memory leak in getAllConfigs of awt_GraphicsEnv.c:386

[Goetz Lindenmaier]

I backport this for parity with 17.0.18-oracle.

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Commit messages:
 - Backport 1166a8abd2e5fba16b5cd29431de2628a52a8e08

Changes: https://git.openjdk.org/jdk17u-dev/pull/3919/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3919&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292214
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3919.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3919/head:pull/3919

PR: https://git.openjdk.org/jdk17u-dev/pull/3919