[TIMOB-7694] Android: Closing window with tableview and navBarHidden property set will result in NullPointerException

D/AndroidRuntime(21347): Shutting down VM
W/dalvikvm(21347): threadid=1: thread exiting with uncaught exception (group=0x401b7760)
E/TiApplication(21347): (main) [1475,203564] Sending event: exception on thread: main msg:java.lang.NullPointerException; Titanium 2.0.0,2012/02/15 11:16,f358132
E/TiApplication(21347): java.lang.NullPointerException
E/TiApplication(21347): at ti.modules.titanium.ui.widget.tableview.TiTableView.onLayout(TiTableView.java:496)
E/TiApplication(21347): at android.view.View.layout(View.java:9601)
E/TiApplication(21347): at android.view.ViewGroup.layout(ViewGroup.java:3879)
E/TiApplication(21347): at org.appcelerator.titanium.view.TiCompositeLayout.onLayout(TiCompositeLayout.java:382)
E/TiApplication(21347): at android.view.View.layout(View.java:9601)
E/TiApplication(21347): at android.view.ViewGroup.layout(ViewGroup.java:3879)
E/TiApplication(21347): at android.widget.FrameLayout.onLayout(FrameLayout.java:400)
E/TiApplication(21347): at android.view.View.layout(View.java:9601)
E/TiApplication(21347): at android.view.ViewGroup.layout(ViewGroup.java:3879)
E/TiApplication(21347): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1542)
E/TiApplication(21347): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1403)
E/TiApplication(21347): at android.widget.LinearLayout.onLayout(LinearLayout.java:1314)
E/TiApplication(21347): at android.view.View.layout(View.java:9601)
E/TiApplication(21347): at android.view.ViewGroup.layout(ViewGroup.java:3879)
E/TiApplication(21347): at android.widget.FrameLayout.onLayout(FrameLayout.java:400)
E/TiApplication(21347): at android.view.View.layout(View.java:9601)
E/TiApplication(21347): at android.view.ViewGroup.layout(ViewGroup.java:3879)
E/TiApplication(21347): at android.view.ViewRoot.performTraversals(ViewRoot.java:1286)
E/TiApplication(21347): at android.view.ViewRoot.handleMessage(ViewRoot.java:2063)
E/TiApplication(21347): at android.os.Handler.dispatchMessage(Handler.java:99)
E/TiApplication(21347): at android.os.Looper.loop(Looper.java:132)
E/TiApplication(21347): at android.app.ActivityThread.main(ActivityThread.java:4126)
E/TiApplication(21347): at java.lang.reflect.Method.invokeNative(Native Method)
E/TiApplication(21347): at java.lang.reflect.Method.invoke(Method.java:491)
E/TiApplication(21347): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)
E/TiApplication(21347): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

//create window 1.
Ti.API.info("opening window 1");
var win = Ti.UI.createWindow({ 
	backgroundColor: "#fff", 
	navBarHidden: true, 
	softInputMode: Ti.UI.Android.SOFT_INPUT_ADJUST_RESIZE, 
	exitOnClose: true 
});
win.open();

var label = Ti.UI.createLabel({ text: "Window 1", width: "auto", height: "auto", top: 10 });
win.add(label);

var openWindow2Button = Ti.UI.createButton({ title: "Open Window 2", height: "auto", width: "auto", bottom: 10 });
openWindow2Button.addEventListener("click", function() { 

	//create window 2.
	Ti.API.info("opening window 2");
	var win2 = Ti.UI.createWindow({ 
		backgroundColor: "#fff",
		navBarHidden: true,//this causes crash on window 2 close!!
		softInputMode: Ti.UI.Android.SOFT_INPUT_ADJUST_RESIZE, 
		exitOnClose: false 
	});
	win2.open();

	var label2 = Ti.UI.createLabel({ text: "Window 2", width: "auto", height: "auto", top: 10 });
	win2.add(label2);
	
	var closeWindow2Button = Ti.UI.createButton({ title: "Close Window 2", height: "auto", width: "auto", bottom: 10 });
	closeWindow2Button.addEventListener("click", function() { 
		Ti.API.info("closing window 2");
		win2.close(); 
	});
	win2.add(closeWindow2Button);

	var table = Ti.UI.createTableView({ top: 60, bottom: 60, left: 0, right: 0, data: [] });
	win2.add(table);
	
});
win.add(openWindow2Button);