Bug 197261 [2.2.1]The report that contain library xtab and set filter cannot be run
Description: [2.2.1]The report that contain library xtab and set filter cannot be run Step: 1.New a library and add a xtab 2.New a report and use the library 3.Drop the xtab from library explorer into layout 4.Set the filter on the xtab that is in report 5.Preview Actual result: It pop up an error said that the report cannot be run
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
super.visitExtendedItem( obj );
			resourceKey( obj, IExtendedItemModel.ALT_TEXT_KEY_PROP,
					IExtendedItemModel.ALT_TEXT_PROP );
			
			writeStructureList( obj, IExtendedItemModel.FILTER_PROP );
			
			ContentTree tree = obj.getContentTree( );
			writeContentTree( tree );
		}
		else
		{
			markLineNumber( obj );
			
			attribute( obj, DesignSchemaConstants.EXTENSION_NAME_ATTRIB,
					IExtendedItemModel.EXTENSION_NAME_PROP );
			String name = (String) obj.getLocalProperty( getModule( ),
					IDesignElementModel.NAME_PROP );
			if ( !StringUtil.isBlank( name ) )
				writer.attribute( DesignSchemaConstants.NAME_ATTRIB, name );
			String extendsFrom = obj.getExtendsName( );
			if ( !StringUtil.isBlank( extendsFrom ) )
				writer.attribute( DesignSchemaConstants.EXTENDS_ATTRIB,
						extendsFrom );
			writer.attribute( DesignSchemaConstants.ID_ATTRIB, new Long( obj
					.getID( ) ).toString( ) );
			
			List props = extDefn.getProperties( );
			for ( int i = 0; i < props.size( ); i++ )
			{
				PropertyDefn prop = (PropertyDefn) props.get( i );