Unstable test 'test_popupSubMenuLocation'

[ptziegler]

Index 0 out of bounds for length 0
java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302)
	at java.base/java.util.Objects.checkIndex(Objects.java:365)
	at java.base/java.util.ArrayList.get(ArrayList.java:428)
	at org.eclipse.wb.tests.designer.swt.model.menu.MenuComplexTest.test_popupSubMenuLocation(MenuComplexTest.java:218)
	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1604)
Jan. 14, 2026 6:19:38 AM org.eclipse.wb.tests.designer.tests.DesignerTestCase$LoggerExtension beforeTestExecution
INFORMATION: MenuComplexTest:test_popupSubMenuLocation()

See:

• https://github.com/eclipse-windowbuilder/windowbuilder/pull/1343/checks?check_run_id=60318302669
• https://github.com/eclipse-windowbuilder/windowbuilder/actions/runs/20970555195

Surprisingly only on Windows and only with the 2026-03 staging repository. My guess is that the parsing is not complete. For debugging, we should add a JUnit rule that prints the contents of the Java file and the model.