i2b2 Workbench 1.4 seems not backward compatible with i2b2 Core 1.3

Analysis view null pointer exception while running against i2b2 Core 1.3

Getting null pointer exception from Workbench 1.4 Analysis view ( "AnalysisComposite.java":977 ,package edu.harvard.i2b2.analysis.ui) on

 if ((!queryResultInstanceType.getQueryResultType()

.getDisplayType().equalsIgnoreCase("CATNUM"))

Displaytype is Null but the code seems expect value"CATNUM". If I set the value manually during run time it works.
 I am running it against harvard demo i2b2 system which may be still pointing to 1,3 Core.

java.lang.NullPointerException

at edu.harvard.i2b2.analysis.ui.AnalysisComposite.insertNodes(AnalysisComposite.java:977)

at edu.harvard.i2b2.analysis.ui.AnalysisComposite$5.drop(AnalysisComposite.java:427)

at org.eclipse.swt.dnd.DNDListener.handleEvent(DNDListener.java:90)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012)

at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:770)

at org.eclipse.swt.dnd.DropTarget.Drop(DropTarget.java:456)

at org.eclipse.swt.dnd.DropTarget$3.method6(DropTarget.java:258)

at org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:119)

at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)

at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2409)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3471)

at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)

at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)

at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)

at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)

at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)

at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)

at edu.harvard.i2b2.eclipse.Application.run(Application.java:135)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:574)

at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)

at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)

at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)

at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

at org.eclipse.equinox.launcher.Main.main(Main.java:1287)