RFR: 8272392: Lanai: SwingSet2. Black background on expanding tree node

[Alexey Ushakov]

Corrected memory allocation problem in replaceTextureRegion()

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Commit messages:
 - 8272392: Lanai: SwingSet2. Black background on expanding tree node

Changes: https://git.openjdk.java.net/jdk/pull/6241/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6241&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272392
  Stats: 6 lines in 1 file changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6241.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6241/head:pull/6241

PR: https://git.openjdk.java.net/jdk/pull/6241