java.lang.NullPointerException
   at org.netbeans.modules.java.editor.JavaEditorWarmUpTask.run(JavaEditorWarmUpTask.java:213)
   at org.netbeans.modules.ide.ergonomics.fod.WarmUp.run(WarmUp.java:75)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1465)
   at org.netbeans.modules.ide.ergonomics.fod.WarmUp.stateChanged(WarmUp.java:83)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119)
   at org.netbeans.modules.ide.ergonomics.fod.FeatureManager.fireChange(FeatureManager.java:300)
   at org.netbeans.modules.ide.ergonomics.fod.FeatureManager.propertyChange(FeatureManager.java:286)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.openide.modules.ModuleInfo.firePropertyChange(ModuleInfo.java:151)
   at org.netbeans.Module.firePropertyChange0(Module.java:600)
   at org.netbeans.ChangeFirer.fire(ChangeFirer.java:110)
   at org.netbeans.ModuleManager.enable(ModuleManager.java:1027)
   at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:318)
   at org.netbeans.core.startup.ModuleList.access$2500(ModuleList.java:115)
   at org.netbeans.core.startup.ModuleList$Listener.stepEnable(ModuleList.java:1361)
   at org.netbeans.core.startup.ModuleList$Listener.access$1500(ModuleList.java:978)
   at org.netbeans.core.startup.ModuleList$Listener$1.run(ModuleList.java:1208)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:125)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:566)
   at org.netbeans.core.startup.ModuleList$Listener.run(ModuleList.java:1184)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)