soapui 2.5 sometimes starts throwing (reflect.InvocationTargetException)

Soapui 2.5 sometimes start thowing this error. Restarting soapui seems to resolve the issue.

Mon Jan 05 11:48:08 PST 2009:ERROR:java.lang.reflect.InvocationTargetException
  java.lang.reflect.InvocationTargetException
  at java.awt.EventQueue.invokeAndWait(Unknown Source)
  at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
  at com.eviware.soapui.support.log.JLogList$LogListModel.run(JLogList.java:480)
  at java.lang.Thread.run(Unknown Source)
  Caused by: java.lang.NullPointerException
  at com.eviware.soapui.support.components.JInspectorPanelImplPro$SelectInspectorAction.propertyChange(SourceFile:243)
  at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
  at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
  at com.eviware.soapui.support.components.JComponentInspector.setTitle(JComponentInspector.java:106)
  at com.eviware.soapui.impl.wsdl.panels.teststeps.WsdlTestRequestDesktopPanel$1.dataChanged(WsdlTestRequestDesktopPanel.java:83)
  at com.eviware.soapui.support.ListDataChangeListener.intervalAdded(ListDataChangeListener.java:28)
  at javax.swing.AbstractListModel.fireIntervalAdded(Unknown Source)
  at com.eviware.soapui.support.log.JLogList$LogListModel.access$1100(JLogList.java:448)
  at com.eviware.soapui.support.log.JLogList$LogListModel$1.run(JLogList.java:489)
  at java.awt.event.InvocationEvent.dispatch(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)