code: public MappedField getMappedFieldByJavaField(final String name) {
          for (final MappedField mf : persistenceFields) {
              if (name.equals(mf.getJavaFieldName())) {
                  return mf;
              }
          }
  
          return null;
      }
docs: Returns MappedField for a given java field name on the this MappedClass
  
  @param name the Java field name to search for
  @return the MappedField for the named Java field