RFR: 6967482: TAB-key does not work in JTables after selecting details-view in JFileChooser [v2]

[Tejesh R]

> DetailsView removes JTable TAB, SHIFT-TAB, ENTER and SHIFT-ENTER functionalities to disable navigation within JTable of FilePane in DetailsView. This is causing the issue mentioned in the bug where on invoking DetailsView the functionalities are removed from JTable. I don't see it's effect/significance in disabling the navigation since the focus shifts outside the when TAB is presses and the folder opens when ENTER is pressed without this changed. 
> I have tested the fix on CI system, its green.

Tejesh R has updated the pull request incrementally with one additional commit since the last revision:

  Review fix - remove null initialization for table

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19725/files
  - new: https://git.openjdk.org/jdk/pull/19725/files/53440478..8adf43d8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19725&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19725&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19725.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19725/head:pull/19725

PR: https://git.openjdk.org/jdk/pull/19725