Bug 138562 Splite extendsexcpetion to seperate sub class
The suggestion is Parent invalid Cycle extends Different type extends Not top level extends
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ElementFactory.java
ImageItem element = new ImageItem( name );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new list group element. List groups cannot have a name.
	 * 
	 * @return a handle to the list group
	 */
	public ListGroupHandle newListGroup( )
	{
		ListGroup element = new ListGroup( );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new list item.
	 * 
	 * @param name
	 *            the optional list name. Can be <code>null</code>.
	 * @return a handle to the list
	 */
	public ListHandle newList( String name )
	{
		ListItem element = new ListItem( name );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new graphic master page element. The name is required. If the