I saw a similiar issue posted that was closed and mentioned fixed but I believe I have the latest version of sonarlint. Perhaps this is just missed use case of same problem?
View Error Occurred in: “SonarLint On-The-Fly”
Action: When I attempt to group issues by severity in this view, I get the NullPointerException. Stack Trace at bottom.
NOTE: This error does seem to pop-up in other events such as when i ask to analyze a file. I do see a of list of sonar violations for the file in the on-the-fly view as well. Also, there are no errors in the sonarlint console. IT shows its connecting to sonarqube and finding issues for given file.
SonarLint Version: “5.6.0.25634”
Eclipse Version: “4.16.0”
Bound to SonarQube: “8.6”
MyEclipse Secure Version: “2020.9.16”
org.eclipse.jface
Error
Wed Jan 06 17:22:23 EST 2021
Problems occurred when invoking code from plug-in: "org.eclipse.jface".
java.lang.NullPointerException
at org.sonarlint.eclipse.core.internal.markers.MarkerUtils.getIssueFlows(MarkerUtils.java:127)
at org.sonarlint.eclipse.ui.internal.views.issues.IssueDescriptionField.getValue(IssueDescriptionField.java:65)
at org.eclipse.ui.views.markers.MarkerField.update(MarkerField.java:255)
at org.sonarlint.eclipse.ui.internal.views.issues.IssueDescriptionField.update(IssueDescriptionField.java:143)
at org.eclipse.ui.internal.views.markers.MarkerColumnLabelProvider.update(MarkerColumnLabelProvider.java:57)
at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:144)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:954)
at org.eclipse.ui.internal.views.markers.MarkersTreeViewer.doUpdateItem(MarkersTreeViewer.java:70)
at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:121)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1032)
at org.eclipse.jface.viewers.StructuredViewer$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:2111)
at org.eclipse.jface.viewers.AbstractTreeViewer.updateChildren(AbstractTreeViewer.java:2768)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefreshStruct(AbstractTreeViewer.java:1954)
at org.eclipse.jface.viewers.TreeViewer.internalRefreshStruct(TreeViewer.java:677)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh(AbstractTreeViewer.java:1930)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh(AbstractTreeViewer.java:1887)
at org.eclipse.jface.viewers.StructuredViewer.lambda$3(StructuredViewer.java:1484)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1400)
at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:363)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1361)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1484)
at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:538)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1445)
at org.eclipse.ui.internal.views.markers.UIUpdateJob.runInUIThread(UIUpdateJob.java:103)
at org.eclipse.ui.progress.UIJob.lambda$0(UIJob.java:95)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4005)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3633)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1158)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1047)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:658)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:557)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:154)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
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:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
at org.eclipse.equinox.launcher.Main.run(Main.java:1447)
at org.eclipse.equinox.launcher.Main.main(Main.java:1420)