RFR: CODETOOLS-7902793: Fix IllegalMonitorStateException in JInternalFrameOperatorCloseTest [v2]

[Alexandre Iline]

> What worked was to override setClosed(boolean) in JInternalFrame to not close the frame.
> 
> Also while inspecting the stack trace, I have discovered that the description is not passed down from JInternalFrameOperator.waitClosed()

Alexandre Iline has updated the pull request incrementally with one additional commit since the last revision:

  closing of the internal frame is actually unnecessary, as the windoe is closed in the teardown anyway

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Changes:
  - all: https://git.openjdk.java.net/jemmy-v2/pull/4/files
  - new: https://git.openjdk.java.net/jemmy-v2/pull/4/files/9d2c1199..bc4a2b55

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jemmy-v2&pr=4&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jemmy-v2&pr=4&range=00-01

  Stats: 4 lines in 1 file changed: 0 ins; 4 del; 0 mod
  Patch: https://git.openjdk.java.net/jemmy-v2/pull/4.diff
  Fetch: git fetch https://git.openjdk.java.net/jemmy-v2 pull/4/head:pull/4

PR: https://git.openjdk.java.net/jemmy-v2/pull/4