Refactored timeout handling in PassFailJFrame: 1. Managing the timer and formatting the time left is inside `TimeoutHandler` class. 2. The class handles timer events and updates the label accordingly.
This is implemented on top of #15665. ------------- Depends on: https://git.openjdk.org/jdk/pull/15665 Commit messages: - 8316017: Refactor timeout handler in PassFailJFrame Changes: https://git.openjdk.org/jdk/pull/15668/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15668&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8316017 Stats: 88 lines in 1 file changed: 56 ins; 29 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/15668.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15668/head:pull/15668 PR: https://git.openjdk.org/jdk/pull/15668
