MyBatisExceptionTranslator loose PersistenceException message

When MyBatis PersistenceException is translated to DataAccessException by MyBatisExceptionTranslator the original message from PersistenceException (ErrorContext message) gets lost. I've implemented my own ExceptionTranslator that preserves the original message - feel free to use it to update your MyBatisExceptionTranslator (my changes are marked with comments).

 public DataAccessException translateExceptionIfPossible(RuntimeException e) {
        // customized extension: store errorMessage from original exception 
        StringBuilder errorMessage = new StringBuilder(e.getMessage()).append("\n");
        if (e instanceof PersistenceException) {
          if (e.getCause() instanceof PersistenceException) {
            e = (PersistenceException) e.getCause();
            // customized extension: add error message from underlying exception
            errorMessage.append(e.getMessage()).append("\n");
          }
          if (e.getCause() instanceof SQLException) {
            this.initExceptionTranslator();
            // customized extension: pass errorMessage 
            return this.exceptionTranslator.translate(errorMessage.toString(), null, (SQLException) e.getCause());
          }
          return new MyBatisSystemException(e);
        } 
        return null;
      }

Start at MyBatisExceptionTranslator and its translateExceptionIfPossible method, then trace how PersistenceException messages reach DataAccessException. The issue is done when the original ErrorContext message is preserved during translation, including when an underlying SQLException is handled.