CDF error NullPointerException

This example is from Task

Internal Error: java.lang.NullPointerException
java.lang.NullPointerException
	at com.fgm.imsma.client.common.cdf.CdfValuesWidget.setCdfValuesList(CdfValuesWidget.java:143)
	at com.fgm.imsma.client.common.cdf.CdfValuesWidget.setCdfValuesSet(CdfValuesWidget.java:153)
	at com.fgm.imsma.client.task.view.TaskEditorView.populateView(TaskEditorView.java:611)
	at com.fgm.imsma.client.task.controller.TaskEditorController.populateComponentsAfterBackground(TaskEditorController.java:174)
	at com.fgm.imsma.gui.controller.Controller$1.done(Controller.java:356)
	at javax.swing.SwingWorker$5.run(Unknown Source)
	at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source)
	at sun.swing.AccumulativeRunnable.run(Unknown Source)
	at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source)
	at javax.swing.Timer.fireActionPerformed(Unknown Source)
	at javax.swing.Timer$DoPostEvent.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$000(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

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