<Swing Dev> RFR: 8269951: [macos] Focus not painted in JButton when setBorderPainted(false) is invoked [v5]

[Alexander Zuev]

> Initial implementation and a test case.
> 
> The problem is that Aqua LaF shows the focused component with the glow on the border, hence when the border is not painted the foxus is not displayed. The idea is to paint the glowing border on the focused component anyways.

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

  Restore Graphics2D rendering state so we do not interfere with next stages of button painting.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5082/files
  - new: https://git.openjdk.java.net/jdk/pull/5082/files/df34ab0b..87ab3e3a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5082&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5082&range=03-04

  Stats: 15 lines in 1 file changed: 13 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5082.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5082/head:pull/5082

PR: https://git.openjdk.java.net/jdk/pull/5082