mouseMove: NPE in SelectionRequestor.acceptLocalVariable(SelectionRequestor.java:440)

[jukzi]

found an error logged multiple times:

java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.lookup.TypeBinding.signableName()" because "binding.type" is null
	at org.eclipse.jdt.internal.core.SelectionRequestor.acceptLocalVariable(SelectionRequestor.java:440)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.selectFrom(SelectionEngine.java:1409)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:1099)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:166)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:375)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinksCached(JavaElementHyperlinkDetector.java:128)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.lambda$0(JavaElementHyperlinkDetector.java:84)
	at org.eclipse.jdt.internal.core.JavaModelManager.cacheZipFiles(JavaModelManager.java:5770)
	at org.eclipse.jdt.internal.core.JavaModelManager.callReadOnly(JavaModelManager.java:5759)
	at org.eclipse.jdt.core.JavaCore.callReadOnly(JavaCore.java:6188)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinks(JavaElementHyperlinkDetector.java:84)
	at org.eclipse.ui.texteditor.HyperlinkDetectorRegistry$HyperlinkDetectorDelegate.detectHyperlinks(HyperlinkDetectorRegistry.java:81)
	at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:289)
	at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:262)
	at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseMove(HyperlinkManager.java:457)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:229)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4326)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1174)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4124)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3712)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271)
	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:668)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:605)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1481)

eclipse.buildId=4.34.0.I20240908-1800
java.version=21.0.2

[jukzi]

got it again :-(

[Phillipus]

Get loads of them on Mac on text hover:

!ENTRY org.eclipse.jface.text 4 0 2024-09-27 17:44:57.663
!MESSAGE Unexpected runtime error while computing a text hover
!STACK 0
java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.lookup.TypeBinding.signableName()" because "binding.type" is null
	at org.eclipse.jdt.internal.core.SelectionRequestor.acceptLocalVariable(SelectionRequestor.java:440)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.selectFrom(SelectionEngine.java:1409)
	at org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:1099)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:166)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:382)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:375)
	at org.eclipse.jdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getJavaElementsAt(AbstractJavaEditorTextHover.java:121)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.lambda$0(JavadocHover.java:713)
	at org.eclipse.jdt.internal.core.JavaModelManager.cacheZipFiles(JavaModelManager.java:5765)
	at org.eclipse.jdt.internal.core.JavaModelManager.callReadOnly(JavaModelManager.java:5754)
	at org.eclipse.jdt.core.JavaCore.callReadOnly(JavaCore.java:6130)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.internalGetHoverInfo(JavadocHover.java:713)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo2(JavadocHover.java:709)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:163)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:130)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:89)
	at org.eclipse.jface.text.TextViewerHoverManager$1.run(TextViewerHoverManager.java:155)