Bug 176784 always-excluding-first and always-excluding-last in item properties pop up error[00]
Details: always-excluding-first and always-excluding-last in item properties pop up error Step: 1.New a report and add a label 2.Select the label and switch properties tab. 3.Select the section and set the page break as always-excluding-first or always-excluding-last. actual result: Pop up an error excepted result: If these selection are not supported, and please remove them. If these selection are supported, it can be set to the item.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/views/property/PropertyEditorFactory.java
/**
	 * Avoid instantiation.
	 */
	private PropertyEditorFactory( )
	{
	}
	/**
	 * Gets the single instance of this class.
	 * 
	 * @return instance
	 */
	public static PropertyEditorFactory getInstance( )
	{
		return instance;
	}
	public CellEditor createPropertyEditor( Composite parent, Object o )
	{
		
		CellEditor editor = null;
		String[] unitsList = null;
		GroupPropertyHandleProvider handle = GroupPropertyHandleProvider.getInstance( );
		
		if ( handle.isReadOnly( o ) )
		{
			return null;
		}
		String[] values = getChoiceNames( o );
		String value = ( (GroupPropertyHandle) o ).getStringValue( );
		if ( value == null )
		{