Matrix NPE

[GoogleCodeExporter]

Reported by Alan. Steps unknown.

java.lang.NullPointerException
at java.util.TreeMap.compare(TreeMap.java:1093)
at java.util.TreeMap.put(TreeMap.java:465)
at java.util.TreeSet.add(TreeSet.java:210)
at java.util.AbstractCollection.addAll(AbstractCollection.java:318)
at java.util.TreeSet.addAll(TreeSet.java:258)
at java.util.TreeSet.<init>(TreeSet.java:143)
at 
uk.ac.manchester.cs.owl.OWLNaryClassAxiomImpl.<init>(OWLNaryClassAxiomImpl.java:
49)
at 
uk.ac.manchester.cs.owl.OWLSubClassAxiomImpl.<init>(OWLSubClassAxiomImpl.java:46
)
at 
uk.ac.manchester.cs.owl.OWLDataFactoryImpl.getOWLSubClassAxiom(OWLDataFactoryImp
l.java:670)
at org.coode.matrix.model.helper.FillerHelper.setFillers(FillerHelper.java:132)
at 
org.coode.matrix.model.impl.RestrictionTreeMatrixModel.setMatrixValue(Restrictio
nTreeMatrixModel.java:90)
at 
org.coode.matrix.model.impl.RestrictionTreeMatrixModel.setMatrixValue(Restrictio
nTreeMatrixModel.java:45)
at 
org.coode.matrix.model.api.AbstractMatrixModel.setValueAt(AbstractMatrixModel.ja
va:131)
at 
org.coode.matrix.model.api.AbstractMatrixModel.setValueAt(AbstractMatrixModel.ja
va:48)
at 
uk.ac.manchester.cs.bhig.jtreetable.AbstractTreeTableModel.setValueAt(AbstractTr
eeTableModel.java:163)
at javax.swing.JTable.setValueAt(JTable.java:1926)
at javax.swing.JTable.editingStopped(JTable.java:3339)
at 
javax.swing.AbstractCellEditor.fireEditingStopped(AbstractCellEditor.java:124)
at javax.swing.AbstractCellEditor.stopCellEditing(AbstractCellEditor.java:67)
at 
org.coode.matrix.ui.editor.OWLObjectListEditor.stopCellEditing(OWLObjectListEdit
or.java:115)
at javax.swing.JTable.editCellAt(JTable.java:2667)
at 
javax.swing.plaf.basic.BasicTableUI$Handler.adjustFocusAndSelection(BasicTableUI
.java:952)
at 
javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(BasicTableUI.java:919)
at 
javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.mousePressed(BasicTableUI.
java:749)
at apple.laf.CUIAquaTable$MouseInputHandler.mousePressed(CUIAquaTable.java:73)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:222)
...

Original issue reported on code.google.com by NickIsConfused@gmail.com on 4 Oct 2010 at 11:07