Runtime error -deferred binding

[karunakar]

[ERROR] Failed to create an instance of 'com.techm.idea.palm.client.TreeAppearanceSample' via deferred binding
java.lang.ExceptionInInitializerError: null
at com.techm.idea.palm.client.TreeAppearanceSample.<init>(TreeAppearanceSample.java:32)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.google.gwt.dev.shell.ModuleSpace.rebindAndCreate(ModuleSpace.java:367)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:312)
at com.google.gwt.dev.shell.BrowserWidget.attachModuleSpace(BrowserWidget.java:329)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6.access$300(BrowserWidgetIE6.java:37)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad(BrowserWidgetIE6.java:76)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke(BrowserWidgetIE6.java:139)
at com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke(IDispatchImpl.java:294)
at com.google.gwt.dev.shell.ie.IDispatchImpl.method6(IDispatchImpl.java:194)
at org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:117)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2966)
at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)
Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError): '$wnd.Ext.StatusBar' is null or not an object
number: -2146823281
description: '$wnd.Ext.StatusBar' is null or not an object
at com.gwtext.client.widgets.Component.checkExtVer(Native Method)
at com.gwtext.client.widgets.Component.<clinit>(Component.java:108)
at com.techm.idea.palm.client.TreeAppearanceSample.<init>(TreeAppearanceSample.java:32)


Please help me resolve this thread.
Thanks in advance
Karunakar.