public ExtensionsTableModel(){
  columnNames=new String[3];
  columnNames[0]=res.getString("ExtensionsTableModel.CriticalColumn");
  columnNames[1]=res.getString("ExtensionsTableModel.NameColumn");
  columnNames[2]=res.getString("ExtensionsTableModel.OidColumn");
  data=new Object[0][0];
}

public ExtensionsTableModel ( ) { columnNames = new String [ 3 ] ; columnNames [ 0 ] = res . getString ( "ExtensionsTableModel.CriticalColumn" ) ; columnNames [ 1 ] = res . getString ( "ExtensionsTableModel.NameColumn" ) ; columnNames [ 2 ] = res . getString ( "ExtensionsTableModel.OidColumn" ) ; data = new Object [ 0 ] [ 0 ] ; }
construct a new extensionstablemodel .
