[jdk11u-dev] RFR: 8241806: The sun/awt/shell/FileSystemViewMemoryLeak.java is unstable

[Sergey Bylokhov]

Backport the patch for the test bug.

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Commit messages:
 - 8241806: The sun/awt/shell/FileSystemViewMemoryLeak.java is unstable

Changes: https://git.openjdk.org/jdk11u-dev/pull/1707/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1707&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8241806
  Stats: 16 lines in 2 files changed: 13 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1707.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1707/head:pull/1707

PR: https://git.openjdk.org/jdk11u-dev/pull/1707