RFR: 8259049: Uninitialized variable after JDK-8257513

[Christian Hagedorn]

Fixing missing initialization to prevent possible compiler warnings. The initialization is not required for correctness, though.

Thanks,
Christian

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

Changes: https://git.openjdk.java.net/jdk/pull/1930/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1930&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/jdk/pull/1930.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1930/head:pull/1930

PR: https://git.openjdk.java.net/jdk/pull/1930