[jdk17u-dev] RFR: 8286159: Memory leak in getAllConfigs of awt_GraphicsEnv.c:585

[Goetz Lindenmaier]

I backport this for parity with 17.0.17-oracle.

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Commit messages:
 - Backport 97bd4c255a319ce626a316ed211ef1fd7d0f1e14

Changes: https://git.openjdk.org/jdk17u-dev/pull/3896/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3896&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8286159
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3896.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3896/head:pull/3896

PR: https://git.openjdk.org/jdk17u-dev/pull/3896