Bug 191410 [Regression] Can not new a report from predefined dual column chart & listing template [00]
Description: Can not new a report from predefined dual column chart & listing template. Build number: 2.2.0.v20070607-0630 Steps to reproduce: 1. New a report from predefined dual column chart & listing template. Expected result: The report can be created. Actual result: XML Source page shows up after click finish. Error log: N/A
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/ReportElementState.java
}
		addToSlot( container, slotID, element );
	}
	/**
	 * Resolves the reference of the extend. There is an assumption that the
	 * parent element always exists before his derived ones.
	 * 
	 */
	private void resolveExtendsElement( )
	{
		DesignElement element = getElement( );
		Module module = handler.getModule( );
		ElementDefn defn = (ElementDefn) element.getDefn( );
		
		String extendsName = element.getExtendsName( );
		if ( StringUtil.isBlank( extendsName ) )
			return;
		DesignElement parent = module.resolveElement( extendsName, element
				.getPropertyDefn( IDesignElementModel.EXTENDS_PROP ), defn );
		if ( parent == null )
		{
			handler
					.getErrorHandler( )
					.semanticWarning(
							new InvalidParentException(
									element,
									extendsName,
									InvalidParentException.DESIGN_EXCEPTION_PARENT_NOT_FOUND ) );
			return;
		}