[exec] Exception in thread "AWT-EventQueue-1" java.lang.NullPointerExceptio
n
     [exec] at hep.wired.heprep.plugin.WiredPlugin$PageHandler.pageChanged(W
iredPlugin.java:388)
     [exec] at org.freehep.application.mdi.PageContext.firePageEvent(PageCon
text.java:61)
     [exec] at org.freehep.application.mdi.PageManager.firePageEvent(PageMan
ager.java:140)
     [exec] at org.freehep.application.mdi.PageManager.close(PageManager.jav
a:80)
     [exec] at org.freehep.application.mdi.TabbedPageManager.close(TabbedPag
eManager.java:41)
     [exec] at org.freehep.application.mdi.TabbedPageManager$1.fireCloseTabA
t(TabbedPageManager.java:91)
     [exec] at org.freehep.application.mdi.CloseButtonTabbedPane$CloseButton
Listener.mouseReleased(CloseButtonTabbedPane.java:319)
     [exec] at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
     [exec] at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
     [exec] at java.awt.Component.processMouseEvent(Unknown Source)
     [exec] at javax.swing.JComponent.processMouseEvent(Unknown Source)
     [exec] at java.awt.Component.processEvent(Unknown Source)
     [exec] at java.awt.Container.processEvent(Unknown Source)
     [exec] at java.awt.Component.dispatchEventImpl(Unknown Source)
     [exec] at java.awt.Container.dispatchEventImpl(Unknown Source)
     [exec] at java.awt.Component.dispatchEvent(Unknown Source)
     [exec] at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Sou
rce)
     [exec] at java.awt.LightweightDispatcher.processMouseEvent(Unknown Sour
ce)
     [exec] at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     [exec] at java.awt.Container.dispatchEventImpl(Unknown Source)
     [exec] at java.awt.Window.dispatchEventImpl(Unknown Source)
     [exec] at java.awt.Component.dispatchEvent(Unknown Source)
     [exec] at java.awt.EventQueue.dispatchEvent(Unknown Source)
     [exec] at org.freehep.jas.util.waitcursor.WaitCursorEventQueue.dispatch
Event(WaitCursorEventQueue.java:47)
     [exec] at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown
 Source)
     [exec] at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown S
ource)
     [exec] at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     [exec] at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     [exec] at java.awt.EventDispatchThread.run(Unknown Source)