Bug 210609 [Smoke]Crosstab is failed to preview in runtime
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/extension/ExtensionPointManager.java
}
	private ExtendedElementUIPoint loadElements(
			IConfigurationElement[] elements )
	{
		ExtendedElementUIPoint newPoint = new ExtendedElementUIPoint( );
		if ( elements != null )
		{
			try
			{
				for ( int i = 0; i < elements.length; i++ )
				{
					loadAttributes( newPoint, elements[i] );
				}
			}
			catch ( Exception e )
			{
				ExceptionHandler.handle( e );
				return null;
			}
		}
		if ( DEUtil.getMetaDataDictionary( )
				.getExtension( newPoint.getExtensionName( ) ) == null )
		{
			
			return null;
		}
		if ( Policy.TRACING_EXTENSION_LOAD )
		{
			System.out.println( "GUI Extesion Manager >> Loads " 
					+ newPoint.getExtensionName( ) );