Bug 183308 IllegalArgumentException occurs after insert a empty group on a List report item[0001]
Description: IllegalArgumentException occurs after insert a empty group on a List report item[0001] Build number: 2.2.0.v20070419-0945 Steps to reproduce: 1, Insert a list 2, Insert a group on the list, only specify the Group On: "aa" Expected result: No exception Actual result: IllegalArgumentException occurs Error log: java.lang.IllegalArgumentException: Argument cannot be null at org.eclipse.swt.SWT.error(SWT.java:3483) at org.eclipse.swt.SWT.error(SWT.java:3422) at org.eclipse.swt.SWT.error(SWT.java:3393) at org.eclipse.swt.widgets.Widget.error(Widget.java:432) at org.eclipse.swt.widgets.Text.setText(Text.java:1793) at org.eclipse.birt.report.designer.ui.dialogs.GroupDialog$6.focusLost(GroupDialog.java:485) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:136) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
}
			String newToc = UIUtil.convertToModelString( tocEditor.getText( ),
					true );
			if ( newToc == null
					|| !newToc.equals( inputGroup.getTocExpression( ) ) )
			{
				inputGroup.setTocExpression( newToc );
			}
			int index;
			if ( inputGroup.getTOC( ) != null )
			{
				index = tocStyleType.getSelectionIndex( );
				if ( index == 0 )
				{
					inputGroup.getTOC( ).setStyleName( null );
				}
				else
				{
					inputGroup.getTOC( ).setStyleName( tocStyleType.getText( ) );
				}
			}
			index = keyChooser.getSelectionIndex( );
			if ( index == -1
					&& UIUtil.convertToModelString( keyChooser.getText( ), true ) != null )
			{
				String groupKey = UIUtil.convertToModelString( keyChooser.getText( ),
						true );
				if ( keyChooser.indexOf( groupKey ) != -1 )
				{
					index = keyChooser.indexOf( groupKey );