Errors after enabling code minings

[vkushni]

Steps to reproduce

• download latest build
• create new workspace
• import all projects (in my case its 40-60 very small maven projects)
• enable code mining
• disable code mining
• notice code mining is not fully disabled
• notice UI freezes
• notice errors in error log

p.s. now i'm not even able open that page in settings to change anything (preferences -> java -> editor -> code minings)

Here is some relevant trace from error log view

java.util.ConcurrentModificationException
	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1687)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:632)
	at org.eclipse.jface.internal.text.codemining.CodeMiningLineHeaderAnnotation.hasAtLeastOneResolvedMiningNotEmpty(CodeMiningLineHeaderAnnotation.java:162)
	at org.eclipse.jface.internal.text.codemining.CodeMiningLineHeaderAnnotation.getHeight(CodeMiningLineHeaderAnnotation.java:99)
	at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:183)
	at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:154)
	at org.eclipse.jface.text.source.inlined.InlinedAnnotationDrawingStrategy.draw(InlinedAnnotationDrawingStrategy.java:101)
	at org.eclipse.jface.text.source.AnnotationPainter.drawDecoration(AnnotationPainter.java:1472)
	at org.eclipse.jface.text.source.AnnotationPainter.handleDrawRequest(AnnotationPainter.java:1433)
	at org.eclipse.jface.text.source.AnnotationPainter.paintControl(AnnotationPainter.java:1378)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:272)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4363)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1217)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1241)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1226)
	at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:1536)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:5031)
	at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:336)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5131)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(Native Method)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3747)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1051)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:684)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:583)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:193)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:615)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1415)

Tested under this environment:

Eclipse IDE for Java Developers (includes Incubating components)

Version: 2026-06 (4.40.0)
Build id: 20260604-0653

Lombok v1.18.47 "Edgy Guinea Pig" - 2026-05-14 is installed (added this as well cause it seems eclipse and lombok hate each other)

[vogella]

@vkushni we are currently in a release freeze. Master should open in a few days I think. Can you ping this report again is a week?

Until then, the workaround seem to be not activating the minings.