return tryToLoadClass(classname, classLoader);
try { return tryToLoadClass(classname, classLoader); } catch(Exception e) { throw new IllegalArgumentException("classname: " + e.getMessage()); }
getRepresentationClassFromMime(String mimeString, ClassLoader classLoader){  String classname = getParameter("class", mimeString);  if (classname != null)    {      try        {          return tryToLoadClass(classname, classLoader);        }      catch(Exception e)        {          throw new IllegalArgumentException("classname: " + e.getMessage());        }    }  else    {      return java.io.InputStream.class;    }}