public class ErrorCode {
    /**错误代码*/
    private String code; 
    /**错误名称*/
    private String name;
    /**错误描述*/
    private String description;
    //Other setter/getter method of the fields above
   ......
}

public class MyBusinessDelegator {
 private ErrorCode errorCode;
 public ErrorCode getErrorCode () {
     return this.errorCode;
 }
 public String  getWeight (String name) {
        try {
            return invoiceSetting.getWeight( name);
        } catch (BusinessException ge) {
            errorCode = new ErrorCode (); //-------
            errorCode.setCode ("2000");
            errorCode.setName ("该人员不存在");
            errorCode.setDescription ("该人员不存在");
            return null;
        } catch (RemoteException re) {
            errorCode = new ErrorCode ();//-------
            errorCode.setCode ("2000");
            errorCode.setName ("系统错误");
            errorCode.setDescription ("系统错误");
            return null;
        }
    }
  }