RFR: 8335231: [macos] Test java/awt/print/PrinterJob/Cancel/PrinterJobCancel.java failed on macOS because the case didn't get the expected PrintAbortException

[Prasanta Sadhukhan]

When a printjob is cancelled midway, `PrinterAbortException `was not thrown in macos. because 
firstly,` cancelCheck` invokes` LWCToolkit.invokeLater` with null as parameter causing it to fail with NPE and
secondly PrinterAbortException was consumed silently when `printLoop` throws any exception
which is rectified to throw the PrinterAbortException when encountered..

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Commit messages:
 - Test
 - 8335231: [macos] Test java/awt/print/PrinterJob/Cancel/PrinterJobCancel.java failed on macOS because the case didn't get the expected PrintAbortException

Changes: https://git.openjdk.org/jdk/pull/20027/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20027&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335231
  Stats: 13 lines in 2 files changed: 2 ins; 8 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/20027.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20027/head:pull/20027

PR: https://git.openjdk.org/jdk/pull/20027