RFR: 8269615: Fix for 8263640 broke Windows build

[Calvin Cheung]

Please review this trivial change for fixing build failure on Windows.

Testing:

- [x] windows-x64-debug build
- [x] tier1 (in progress)

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Commit messages:
 - 8269615: Fix for 8263640 broke Windows build

Changes: https://git.openjdk.java.net/jdk/pull/4626/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4626&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269615
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4626.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4626/head:pull/4626

PR: https://git.openjdk.java.net/jdk/pull/4626