errore Java.lang.nullpointerexception

[gigainrete]

Ciao a tutti,inaspettatamente quando uso un software per simulazioni Cfd java mi dà questo errore e non mi fa proseguire con lo studio.
Altri miei colleghi hanno lo stesso sistema operativo e le stesse condizioni hardware.(windows seven).
L'errore per esteso è:



java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(EventQueue.java:997)
at javax.swing.SwingUtilities.invokeAndWait(SwingUtilities.java:1323)
at star.coremodule.ui.BasicDialog.show(BasicDialog.java:123)
at star.meshing.actions.ImportSurfaceAction.fileSelected(ImportSurfaceAction.java:180)
at star.coremodule.actions.FilesChooserAction$1.run(FilesChooserAction.java:32)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)
Caused by: java.lang.NullPointerException
at star.coremodule.ui.MultiPagePanel.getDisplayedPage(MultiPagePanel.java:276)
at star.coremodule.ui.ImportGeometryDialog$ImportGeometryPanel.getDisplayedPage(ImportGeometryDialog.java:61)
at star.coremodule.ui.ImportGeometryDialog.onOk(ImportGeometryDialog.java:49)
at star.coremodule.ui.OkCancelDialog.processResult(OkCancelDialog.java:63)
at star.coremodule.ui.BasicDialog.showDialog(BasicDialog.java:135)
at star.coremodule.ui.BasicDialog.access$000(BasicDialog.java:44)
at star.coremodule.ui.BasicDialog$1.run(BasicDialog.java:124)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
==>
java.lang.NullPointerException
at star.coremodule.ui.MultiPagePanel.getDisplayedPage(MultiPagePanel.java:276)
at star.coremodule.ui.ImportGeometryDialog$ImportGeometryPanel.getDisplayedPage(ImportGeometryDialog.java:61)
at star.coremodule.ui.ImportGeometryDialog.onOk(ImportGeometryDialog.java:49)
at star.coremodule.ui.OkCancelDialog.processResult(OkCancelDialog.java:63)
at star.coremodule.ui.BasicDialog.showDialog(BasicDialog.java:135)
at star.coremodule.ui.BasicDialog.access$000(BasicDialog.java:44)
at star.coremodule.ui.BasicDialog$1.run(BasicDialog.java:124)
[catch] at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)


C'è la possibilità di risolverlo o no?
E' una questione molto importante.
Grazie mille per l'aiuto.

[gokan]

prova a vedere perchè un oggetto ti arriva null a questa riga
at
star.coremodule.ui.MultiPagePanel.getDisplayedPage(MultiPagePanel.java:276)

Il debug di eclipse è tuo amico