java.lang.NullPointerException
at java.util.TreeMap.rotateLeft(TreeMap.java:2224)
at java.util.TreeMap.fixAfterInsertion(TreeMap.java:2291)
at java.util.TreeMap.put(TreeMap.java:582)
at com.intellij.util.containers.SortedList.addToMap(SortedList.java:49)
at com.intellij.util.containers.SortedList.add(SortedList.java:57)
at ros.integrate.workspace.ROSPackageManagerImpl.sortToLists(ROSPackageManagerImpl.java:125)
at ros.integrate.workspace.ROSPackageManagerImpl.lambda$doBulkFileChangeEvents$1(ROSPackageManagerImpl.java:52)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:291)
at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool.helpComplete(ForkJoinPool.java:1870)
at java.util.concurrent.ForkJoinPool.externalHelpComplete(ForkJoinPool.java:2467)
at java.util.concurrent.ForkJoinTask.externalAwaitDone(ForkJoinTask.java:324)
at java.util.concurrent.ForkJoinTask.doInvoke(ForkJoinTask.java:405)
at java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:734)
at java.util.stream.ForEachOps$ForEachOp.evaluateParallel(ForEachOps.java:160)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateParallel(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:583)
at ros.integrate.workspace.ROSPackageManagerImpl.doBulkFileChangeEvents(ROSPackageManagerImpl.java:52)
at ros.integrate.workspace.ROSPackageManagerImpl.access$000(ROSPackageManagerImpl.java:18)
at ros.integrate.workspace.ROSPackageManagerImpl$1.after(ROSPackageManagerImpl.java:35)
at sun.reflect.GeneratedMethodAccessor162.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.util.messages.impl.MessageBusConnectionImpl.deliverMessage(MessageBusConnectionImpl.java:114)
at com.intellij.util.messages.impl.MessageBusImpl.doPumpMessages(MessageBusImpl.java:393)
at com.intellij.util.messages.impl.MessageBusImpl.pumpWaitingBuses(MessageBusImpl.java:354)
at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:343)
at com.intellij.util.messages.impl.MessageBusImpl.sendMessage(MessageBusImpl.java:318)
at com.intellij.util.messages.impl.MessageBusImpl.access$100(MessageBusImpl.java:29)
at com.intellij.util.messages.impl.MessageBusImpl$1.invoke(MessageBusImpl.java:192)
at com.sun.proxy.$Proxy27.beforeFileContentReload(Unknown Source)
at sun.reflect.GeneratedMethodAccessor386.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.multiCast(FileDocumentManagerImpl.java:142)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.lambda$new$0(FileDocumentManagerImpl.java:122)
at com.sun.proxy.$Proxy27.beforeFileContentReload(Unknown Source)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.fireBeforeFileContentReload(FileDocumentManagerImpl.java:733)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.reloadFromDisk(FileDocumentManagerImpl.java:633)
at com.intellij.openapi.fileEditor.impl.FileDocumentManagerImpl.contentsChanged(FileDocumentManagerImpl.java:622)
at sun.reflect.GeneratedMethodAccessor380.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.util.EventDispatcher.dispatchVoidMethod(EventDispatcher.java:132)
at com.intellij.util.EventDispatcher.access$000(EventDispatcher.java:26)
at com.intellij.util.EventDispatcher$1.invoke(EventDispatcher.java:90)
at com.sun.proxy.$Proxy23.contentsChanged(Unknown Source)
at com.intellij.openapi.vfs.impl.BulkVirtualFileListenerAdapter.fireAfter(BulkVirtualFileListenerAdapter.java:65)
at com.intellij.openapi.vfs.impl.BulkVirtualFileListenerAdapter.after(BulkVirtualFileListenerAdapter.java:56)
at sun.reflect.GeneratedMethodAccessor162.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.util.messages.impl.MessageBusConnectionImpl.deliverMessage(MessageBusConnectionImpl.java:114)
at com.intellij.util.messages.impl.MessageBusImpl.doPumpMessages(MessageBusImpl.java:393)
at com.intellij.util.messages.impl.MessageBusImpl.pumpWaitingBuses(MessageBusImpl.java:354)
at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:343)
at com.intellij.util.messages.impl.MessageBusImpl.sendMessage(MessageBusImpl.java:320)
at com.intellij.util.messages.impl.MessageBusImpl.access$100(MessageBusImpl.java:29)
at com.intellij.util.messages.impl.MessageBusImpl$1.invoke(MessageBusImpl.java:192)
at com.sun.proxy.$Proxy21.after(Unknown Source)
at com.intellij.openapi.vfs.newvfs.persistent.PersistentFSImpl.processEvents(PersistentFSImpl.java:903)
at com.intellij.openapi.vfs.newvfs.RefreshSessionImpl.fireEventsInWriteAction(RefreshSessionImpl.java:199)
at com.intellij.openapi.application.WriteAction.run(WriteAction.java:92)
at com.intellij.openapi.vfs.newvfs.RefreshSessionImpl.fireEvents(RefreshSessionImpl.java:186)
at com.intellij.openapi.application.TransactionGuardImpl.runSyncTransaction(TransactionGuardImpl.java:88)
at com.intellij.openapi.application.TransactionGuardImpl.lambda$submitTransaction$1(TransactionGuardImpl.java:111)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.doRun(LaterInvocator.java:435)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:419)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:403)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:741)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:690)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:385)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
While I do not know for sure, I just made a commit that might have solved this bug. Unless a brand new NPE/IllegalStateException is raised relating to package management, I will consider this issue closed.