Major Sometimes when editing files the error is shown in Error log (see attached screenshot), it seems like a random behaviour and also it seems it has no effect on functionality.
This issue is already reported at https://github.com/eclipse/lsp4e/issues/536
org.eclipse.jface.text.BadLocationException at org.eclipse.jface.text.TreeLineTracker.fail(TreeLineTracker.java:1054) at org.eclipse.jface.text.TreeLineTracker.offsetByLine(TreeLineTracker.java:335) at org.eclipse.jface.text.TreeLineTracker.getLineOffset(TreeLineTracker.java:1111) at org.eclipse.jface.text.AbstractLineTracker.getLineOffset(AbstractLineTracker.java:252) at org.eclipse.jface.text.AbstractDocument.getLineOffset(AbstractDocument.java:877) at org.eclipse.core.internal.filebuffers.SynchronizableDocument.getLineOffset(SynchronizableDocument.java:323) at org.eclipse.lsp4e.LSPEclipseUtils.toOffset(LSPEclipseUtils.java:184) at org.eclipse.lsp4e.outline.SymbolsLabelProvider.getMaxSeverity(SymbolsLabelProvider.java:191) at org.eclipse.lsp4e.outline.SymbolsLabelProvider.getImage(SymbolsLabelProvider.java:168) at org.eclipse.ui.internal.navigator.NavigatorContentServiceLabelProvider.findImage(NavigatorContentServiceLabelProvider.java:204) at org.eclipse.ui.internal.navigator.NavigatorContentServiceLabelProvider.getColumnImage(NavigatorContentServiceLabelProvider.java:112) at org.eclipse.ui.internal.navigator.NavigatorContentServiceLabelProvider.getImage(NavigatorContentServiceLabelProvider.java:104) at org.eclipse.ui.internal.navigator.NavigatorDecoratingLabelProvider$StyledLabelProviderAdapter.getImage(NavigatorDecoratingLabelProvider.java:63) at org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.getImage(DelegatingStyledCellLabelProvider.java:198) at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider.getImage(DecoratingStyledCellLabelProvider.java:171) at org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.update(DelegatingStyledCellLabelProvider.java:124) at org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider.update(DecoratingStyledCellLabelProvider.java:134) at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:144) at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:970) at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:126) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1048) at org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:427) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2107) at org.eclipse.jface.viewers.AbstractTreeViewer.updateChildren(AbstractTreeViewer.java:2791) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefreshStruct(AbstractTreeViewer.java:1971) at org.eclipse.jface.viewers.TreeViewer.internalRefreshStruct(TreeViewer.java:684) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh(AbstractTreeViewer.java:1947) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh(AbstractTreeViewer.java:1904) at org.eclipse.ui.navigator.CommonViewer.internalRefresh(CommonViewer.java:530) at org.eclipse.jface.viewers.StructuredViewer.lambda$3(StructuredViewer.java:1482) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1398) at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:365) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1359) at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1482) at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:538) at org.eclipse.ui.navigator.CommonViewer.refresh(CommonViewer.java:352) at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1443) at org.eclipse.lsp4e.outline.CNFOutlinePage.labelProviderChanged(CNFOutlinePage.java:300) at org.eclipse.jface.viewers.BaseLabelProvider$1.run(BaseLabelProvider.java:75) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.BaseLabelProvider.fireLabelProviderChanged(BaseLabelProvider.java:72) at org.eclipse.ui.internal.decorators.DecoratorManager.lambda$0(DecoratorManager.java:351) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.ui.internal.decorators.DecoratorManager.fireListener(DecoratorManager.java:351) at org.eclipse.ui.internal.decorators.DecorationScheduler$3.runInUIThread(DecorationScheduler.java:560) at org.eclipse.ui.progress.UIJob.lambda$0(UIJob.java:148) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:5040) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4520) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:643) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:550) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596) at org.eclipse.equinox.launcher.Main.run(Main.java:1467) at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
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