RFR: 8286266: [macos] Voice over moving JTable column to be the first column JVM crashes [v2]

[Alexander Zuev]

> Moving cache invalidation from the clearCache method to a createRowWithIndex method
> eliminating race condition that causes crash. Now clearCache just notifies that cache
> is invalid and should be regenerated next time it is being accessed.

Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:

  Add a test case.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8636/files
  - new: https://git.openjdk.java.net/jdk/pull/8636/files/3a391d34..11f25a16

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8636&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8636&range=00-01

  Stats: 28 lines in 1 file changed: 28 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8636.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8636/head:pull/8636

PR: https://git.openjdk.java.net/jdk/pull/8636