Root cause: The test unreliability comes from the 250ms sleep between `System.gc()` calls. Other system tests such as `TabPaneHeaderLeakTest`, `AccordionTitlePaneLeakTest` and `ShapeViewOrderLeakTest` etc sleep for 500ms between `System.gc()` calls.
Fix: - Increased the sleep time to 500ms between `System.gc()` calls. - Reduced the number of SwingNodes by half as an additional step towards making the test lighter. Testing: This test used to fail on my macBook all the time if ran as part of a full system test run. I executed full test runs 5 times with above changes and no failure was observed. ------------- Commit messages: - Fix 8285503 Changes: https://git.openjdk.org/jfx/pull/946/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=946&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8285503 Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jfx/pull/946.diff Fetch: git fetch https://git.openjdk.org/jfx pull/946/head:pull/946 PR: https://git.openjdk.org/jfx/pull/946
