[ui.tests] log a TestException instead of RuntimeException

[jukzi]

Nightly org.eclipse.ui.tests.UiTestSuite.txt contains intentional RuntimeException that are hard to distinguish from unintentional exceptions.

[jukzi]

see https://download.eclipse.org/eclipse/downloads/drops4/I20241008-1810/testresults/ep434I-unit-win32-java17_win32.win32.x86_64_17/org.eclipse.ui.tests.UiTestSuite.txt

for example

!ENTRY org.eclipse.ui.workbench 4 2 2024-10-09 09:19:17.245
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.RuntimeException
	at org.eclipse.ui.tests.api.IWorkingSetManagerTest.lambda$0(IWorkingSetManagerTest.java:422)
	at org.eclipse.ui.internal.AbstractWorkingSetManager$5.run(AbstractWorkingSetManager.java:378)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.ui.internal.AbstractWorkingSetManager.lambda$1(AbstractWorkingSetManager.java:386)
	at org.eclipse.ui.internal.AbstractWorkingSetManager.firePropertyChange(AbstractWorkingSetManager.java:391)
	at org.eclipse.ui.internal.AbstractWorkingSetManager.internalAddWorkingSet(AbstractWorkingSetManager.java:235)
	at org.eclipse.ui.internal.AbstractWorkingSetManager.addWorkingSet(AbstractWorkingSetManager.java:227)
	at org.eclipse.ui.internal.WorkingSetManager.addWorkingSet(WorkingSetManager.java:66)
	at org.eclipse.ui.tests.api.IWorkingSetManagerTest.testListenerSafety(IWorkingSetManagerTest.java:431)

[github-actions]

Test Results

 1 815 files  ±0   1 815 suites  ±0   1h 33m 21s ⏱️ - 16m 3s
 7 704 tests ±0   7 475 ✅  - 1  228 💤 ±0  1 ❌ +1 
24 273 runs  ±0  23 525 ✅  - 1  747 💤 ±0  1 ❌ +1 

For more details on these failures, see this check.

Results for commit 6893a47. ± Comparison against base commit b945db1.

[jukzi]

ignore random fail #294 (comment)