private void updateAllRegisteredClasses(Model model, UDFClassLoader activeClassLoader)
      throws ClassNotFoundException {
    for (UDFInformation information : getUDFInformation(model)) {
      udfTable.updateFunctionClass(information, activeClassLoader);
    }
  }
Only call this method directly for registering new data node, otherwise you need to call
register().
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/udf/UDFManagementService.java