java.lang.NullPointerException
	at org.openide.explorer.propertysheet.ComboInplaceEditor.setSelectedItem(ComboInplaceEditor.java:160)
	at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:596)
	at javax.swing.plaf.basic.BasicComboBoxUI$Actions.actionPerformed(BasicComboBoxUI.java:1488)
	at javax.swing.plaf.basic.BasicComboBoxUI$Handler.actionPerformed(BasicComboBoxUI.java:1816)
	at javax.swing.JTextField.fireActionPerformed(JTextField.java:487)
	at javax.swing.JTextField.postActionEvent(JTextField.java:668)
	at javax.swing.JTextField$NotifyAction.actionPerformed(JTextField.java:783)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1582)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2897)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2932)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2860)
	at java.awt.Component.processEvent(Component.java:5698)
	at java.awt.Container.processEvent(Container.java:1962)
	at java.awt.Component.dispatchEventImpl(Component.java:4360)
	at java.awt.Container.dispatchEventImpl(Container.java:2020)
	at java.awt.Component.dispatchEvent(Component.java:4194)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1826)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:690)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:938)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:816)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:654)
	at java.awt.Component.dispatchEventImpl(Component.java:4232)
	at java.awt.Container.dispatchEventImpl(Container.java:2020)
	at java.awt.Window.dispatchEventImpl(Window.java:2059)
	at java.awt.Component.dispatchEvent(Component.java:4194)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:592)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:270)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:198)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:171)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:166)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:158)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:119)