Bug 104229

Netbeans 5.5 Behavior:
1) Open a project, create a new folder
2) Create a java/Schema/XML file. Please note that this should be the only file
in the package
3) Open the file. The Navigator window shows the relevant content
4) Delete the file.
5) The Navigator is empty, displays "No view available"

Netbeans 6.0 M9 behavior:
1) Open a project, create a new folder
2) Create a java/Schema/XML file. Please note that this should be the only file
in the package
3) Open the file. The Navigator window shows the relevant content
4) Delete the file.
5) The navigaor doesn refresh and still shows the methods in case of java file,
elements in case of schema/xml file. If you double-click anywhere in the
navigator, you get the following error:

java.lang.NullPointerException
	at org.netbeans.api.java.source.UiUtils.getOffset(UiUtils.java:326)
	at org.netbeans.api.java.source.UiUtils.getOpenInfo(UiUtils.java:193)
	at org.netbeans.api.java.source.UiUtils.open(UiUtils.java:95)
	at
org.netbeans.modules.java.navigation.actions.OpenAction.actionPerformed(OpenAction.java:68)
	at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1396)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:212)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
	at java.awt.Component.processMouseEvent(Component.java:5504)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
	at java.awt.Component.processEvent(Component.java:5266)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3968)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3901)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1778)
	at java.awt.Component.dispatchEvent(Component.java:3803)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)


I think the Netbeans5.5 behavior was right one. If a file is deleted then the
navigator should not show the deleted file's content.