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
writer.startElement( DesignSchemaConstants.STRUCTURE_TAG );
			if ( struct instanceof IncludedLibrary )
				markLineNumber( struct );
			Iterator memberIter = prop.getStructDefn( ).propertiesIterator( );
			while ( memberIter.hasNext( ) )
			{
				PropertyDefn memberDefn = (PropertyDefn) memberIter.next( );
				
				
				
				writeMember( struct, memberDefn );
			}
			writer.endElement( );
		}
		writer.endElement( );
	}
	/**
	 * Writes the structure list of the give property definition for given
	 * structure.
	 * 
	 * @param obj
	 *            the structure to write
	 * @param memberName
	 *            the name of the structure list property to write
	 */
	private void writeStructureList( IStructure obj, String memberName )
	{
		PropertyDefn prop = (PropertyDefn) obj.getDefn( )
				.getMember( memberName );
		assert prop != null;