java.lang.NullPointerException
	at org.netbeans.modules.tasklist.core.TaskListView.findNextVisitable(TaskListView.java:1382)
	at org.netbeans.modules.tasklist.core.TaskListView.nextTask(TaskListView.java:1499)
	at org.netbeans.modules.tasklist.core.TaskListView$PrevNextAction.actionPerformed(TaskListView.java:1718)
	at org.openide.util.actions.CallbackSystemAction.actionPerformed(CallbackSystemAction.java:169)
	at org.openide.util.actions.CallbackSystemAction$DelegateAction.actionPerformed(CallbackSystemAction.java:524)
	at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:798)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2894)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2811)
	at java.awt.Component.processEvent(Component.java:5374)
	at java.awt.Container.processEvent(Container.java:1965)
	at java.awt.Component.dispatchEventImpl(Component.java:4036)
	at java.awt.Container.dispatchEventImpl(Container.java:2023)
	at java.awt.Component.dispatchEvent(Component.java:3873)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1825)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:687)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:935)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:813)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:651)
	at java.awt.Component.dispatchEventImpl(Component.java:3911)
	at java.awt.Container.dispatchEventImpl(Container.java:2023)
	at java.awt.Window.dispatchEventImpl(Window.java:1808)
	at java.awt.Component.dispatchEvent(Component.java:3873)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:591)
[catch] at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:247)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:162)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:154)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:115)