//ignore the belonging definition if write to a file
String temp = def.getBelongingDefinitionId();
def.setBelongingDefinitionId(null);
se.serialize( def, fo, null);
//TestSVGGen.export2SVG(getProcessDefinitionDesigner(), new FileOutputStream(filePath + System.getProperty("file.separator") + fileName+".svg"));
//restore the belonging def
def.setBelongingDefinitionId(temp);