RFR: 8295774: Write a test to verify List sends ItemEvent/ActionEvent [v5]

[ravi gupta]

> This testcase verify that List Item selection via mouse/keys generates ItemEvent/ActionEvent appropriately.
> 
> a. Single click on the list generate ItemEvent and double click on item generates ActionEvent.
> b. UP/DOWN keys on the list generate ItemEvent and enter key on item generates ActionEvent.
> 
> Testing:
> Tested using Mach5(20 times per platform) in macos,linux and windows and got all pass.

ravi gupta has updated the pull request incrementally with one additional commit since the last revision:

  8295774: Write a test to verify List sends ItemEvent/ActionEvent

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10899/files
  - new: https://git.openjdk.org/jdk/pull/10899/files/814c3397..305b0122

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10899&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10899&range=03-04

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10899.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10899/head:pull/10899

PR: https://git.openjdk.org/jdk/pull/10899