java.lang.IllegalStateException: @NotNull method com/mbeddr/mpsutil/projectview/runtime/tree/CustomProjectView.getTitle must not return null
at com.mbeddr.mpsutil.projectview.runtime.tree.CustomProjectView.$$$reportNull$$$0(CustomProjectView.java)
at com.mbeddr.mpsutil.projectview.runtime.tree.CustomProjectView.getTitle(CustomProjectView.java:170)
at com.mbeddr.mpsutil.projectview.runtime.tree.CustomProjectViewSelectInTarget.<init>(CustomProjectViewSelectInTarget.java:29)
at com.mbeddr.mpsutil.projectview.runtime.tree.CustomProjectView.createSelectInTarget(CustomProjectView.java:463)
at com.intellij.ide.projectView.impl.ProjectViewImpl.addProjectPane(ProjectViewImpl.java:664)
at com.intellij.ide.projectView.impl.ProjectViewImpl.reloadPanes(ProjectViewImpl.java:951)
at com.intellij.ide.projectView.impl.ProjectViewImpl$19.extensionAdded(ProjectViewImpl.java:559)
at com.intellij.ide.projectView.impl.ProjectViewImpl$19.extensionAdded(ProjectViewImpl.java:556)
at com.intellij.openapi.extensions.impl.ExtensionPointImpl.notifyListeners(ExtensionPointImpl.java:764)
at com.intellij.openapi.extensions.impl.ExtensionPointImpl.doRegisterExtension(ExtensionPointImpl.java:152)
at com.intellij.openapi.extensions.impl.ExtensionPointImpl.registerExtension(ExtensionPointImpl.java:119)
at com.intellij.openapi.extensions.impl.ExtensionPointImpl.registerExtension(ExtensionPointImpl.java:113)
at com.mbeddr.mpsutil.projectview.runtime.ProjectViewManager.activateView(ProjectViewManager.java:152)
at com.mbeddr.mpsutil.projectview.runtime.ProjectViewManager.lambda$syncViews$2(ProjectViewManager.java:130)
at jetbrains.mps.ide.ThreadUtils$LogExceptionsRunnable.run(ThreadUtils.java:80)
at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:209)
at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:21)
at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:191)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:881)
at com.intellij.openapi.application.impl.ApplicationImpl$3.run(ApplicationImpl.java:513)
at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:75)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:118)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:42)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:779)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:730)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:724)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:749)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:918)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:766)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$6(IdeEventQueue.java:450)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:791)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$7(IdeEventQueue.java:449)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:105)
at com.intellij.ide.IdeEventQueue.performActivity(IdeEventQueue.java:624)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:447)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:881)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:493)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)