code: private XmlClass findXmlClass(Class<?> aClass){
  		for (XmlClass xmlClass : xmlJmapper.classes) 
  			if(xmlClass.name.equals(aClass.getName())) return xmlClass;
  		return null;
  	}
docs: Finds the Class, given in input, in the xml mapping file and returns a XmlClass instance if exist, null otherwise.
  @param aClass Class to finds
  @return a XmlClass if aClass exist in xml mapping file, null otherwise