NPE caught by IDEA

[LIttleAncientForestKami]

Null pointer exception was thrown as I was browsing a project.

IDEA didn't yet fully start, as JDK indexing was not finished. Another plugin update has just finished and I chose NOT to restart, so some changes were pending.

I was moving between files. I don't have an exact replication scenario, I haven't managed to retrace my steps or cause the error to happen again, so feel free to close if the stack trace doesn't help. After the stack trace I've put version information.

Said stack trace:

java.lang.NullPointerException
	at com.github.kisstkondoros.codemetrics.inlay.InlayHighlighter$2.mouseClicked(InlayHighlighter.java:62)
	at com.intellij.openapi.editor.impl.EditorImpl$MyMouseAdapter.runMouseClickedCommand(EditorImpl.java:3885)
	at com.intellij.openapi.editor.impl.EditorImpl$MyMouseAdapter.mouseReleased(EditorImpl.java:3798)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:298)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6635)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
	at java.desktop/java.awt.Component.processEvent(Component.java:6400)
	at java.desktop/java.awt.Container.processEvent(Container.java:2263)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5011)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4843)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4843)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:969)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.java:906)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:836)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:449)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:808)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:448)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:781)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:502)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Version information:

IntelliJ IDEA 2021.1 (Ultimate Edition)
Build #IU-211.6693.111, built on April 6, 2021
Runtime version: 11.0.11+9-Ubuntu-0ubuntu2.20.04 amd64
VM: OpenJDK 64-Bit Server VM by Ubuntu
Linux 5.4.0-89-generic
GC: G1 Young Generation, G1 Old Generation
Memory: 4096M
Cores: 4
Registry: editor.distraction.free.mode=true
Non-Bundled Plugins: com.andrey4623.rainbowcsv (2.0), com.jetbrains.ChooseRuntime (1.2), org.nik.presentation-assistant (1.0.9), CheckStyle-IDEA (5.55.0), PMD-IDEA (1.7.0), com.aegamesi.java_visualizer.plugin (2.2.0), com.github.kisstkondoros.codemetrics (1.0.4), ch.docksnet.rgraph (3.1.1), org.jetbrains.plugins.spotbugs (1.2.5), org.pmesmeur.sketchit (0.07.00), org.sonarlint.idea (6.2.0.39326), lermitage.intellij.extra.icons (1.66.0.203), PlantUML integration (5.7.2), org.asciidoctor.intellij.asciidoc (0.33.14)
Kotlin: 211-1.4.32-release-IJ6693.72
Current Desktop: XFCE