java.lang.NullPointerException
   at org.netbeans.modules.java.editor.JavaEditorWarmUpTask.run(JavaEditorWarmUpTask.java:255)
   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:1467)
   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:978)
   at org.netbeans.modules.autoupdate.services.OperationSupportImpl$ForEnable.enable(OperationSupportImpl.java:186)
   at org.netbeans.modules.autoupdate.services.OperationSupportImpl$ForEnable.access$1200(OperationSupportImpl.java:129)
   at org.netbeans.modules.autoupdate.services.OperationSupportImpl$ForEnable$1.run(OperationSupportImpl.java:160)
   at org.netbeans.modules.autoupdate.services.OperationSupportImpl$ForEnable$1.run(OperationSupportImpl.java:158)
   at org.openide.util.Mutex.writeAccess(Mutex.java:436)
   at org.netbeans.modules.autoupdate.services.OperationSupportImpl$ForEnable.doOperation(OperationSupportImpl.java:158)
   at org.netbeans.api.autoupdate.OperationSupport.doOperation(OperationSupport.java:70)
   at org.netbeans.modules.ide.ergonomics.fod.ModulesActivator.doEnableModules(ModulesActivator.java:144)
   at org.netbeans.modules.ide.ergonomics.fod.ModulesActivator.enableModules(ModulesActivator.java:109)
   at org.netbeans.modules.ide.ergonomics.fod.InstallOrActivateTask.run(InstallOrActivateTask.java:83)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1426)
   at org.openide.util.RequestProcessor$Processor.doEvaluate(RequestProcessor.java:2012)
   at org.openide.util.RequestProcessor$Task.waitFinished(RequestProcessor.java:1661)
   at org.netbeans.modules.ide.ergonomics.fod.ModulesInstaller.installModules(ModulesInstaller.java:126)
   at org.netbeans.modules.ide.ergonomics.fod.ConfigurationPanel.run(ConfigurationPanel.java:195)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1426)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)