Bug 124501 need uninstall of jst.utility facet
The jst.utility facet needs an uninstall delegate. Without it, it is not possible to deselect this facet and select/install the Dynamic Web Module facet on an existing project.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/core/model/schematic/TableHandleAdapter.java
*/
	public TableGroupHandle insertGroup( ) throws ContentException,
			NameException
	{
		if ( DEUtil.getDataSetList( getTableHandle( ) ).isEmpty( ) )
		{
			return null;
		}
		transStar( TRANS_LABEL_INSERT_GROUP );
		RowHandle header = getTableHandle( ).getElementFactory( ).newTableRow( );
		RowHandle footer = getTableHandle( ).getElementFactory( ).newTableRow( );
		addCell( header );
		addCell( footer );
		TableGroupHandle groupHandle = getTableHandle( ).getElementFactory( )
				.newTableGroup( );
		groupHandle.getSlot( TableGroupHandle.HEADER_SLOT ).add( header );
		groupHandle.getSlot( TableGroupHandle.FOOTER_SLOT ).add( footer );
		SlotHandle handle = getTableHandle( ).getGroups( );
		handle.add( groupHandle );
		transEnd( );
		return groupHandle;
	}
	/**
	 * Provides remove group function
	 * 
	 * @throws SemanticException
	 * 
	 */
	public void removeGroup( Object group ) throws SemanticException
	{