[jdk16u] RFR: 8259049: Uninitialized variable after JDK-8257513

[Tobias Hartmann]

Backport of [JDK-8259049](https://bugs.openjdk.java.net/browse/JDK-8259049). Applies cleanly.

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Commit messages:
 - 8259049: Uninitialized variable after JDK-8257513

Changes: https://git.openjdk.java.net/jdk16u/pull/18/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk16u&pr=18&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259049
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk16u/pull/18.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk16u pull/18/head:pull/18

PR: https://git.openjdk.java.net/jdk16u/pull/18