RFR: 8321625: ContextMenuNPETest fails intermittently on Linux [v2]

[Ziad El Midaoui]

> The test seems to be working in Linux currently, so I enabled it for Linux systems.

Ziad El Midaoui has updated the pull request incrementally with one additional commit since the last revision:

  Copyright update

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1893/files
  - new: https://git.openjdk.org/jfx/pull/1893/files/9c50c084..de1ee073

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1893&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1893&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1893.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1893/head:pull/1893

PR: https://git.openjdk.org/jfx/pull/1893