content: package org.apache.dubbo.springboot.demo;
  
  import java.security.PrivilegedActionException;
  
  /**
   * 服务端异常
   */
  public class ServiceException
          extends RuntimeException {
      private static final long serialVersionUID = -1891675201830469702L;
  
      /**
       * Constructs a new exception with {@code null} as its detail message.
       * The cause is not initialized, and may subsequently be initialized by a
       * call to {@link #initCause}.
       */
      public ServiceException() {
          super();
      }
  
      /**
       * Constructs a new exception with the specified detail message.  The
       * cause is not initialized, and may subsequently be initialized by
       * a call to {@link #initCause}.
       *
       * @param message the detail message. The detail message is saved for
       *                later retrieval by the {@link #getMessage()} method.
       */
      public ServiceException(String message) {
          super(message);
      }
  
      /**
       * Constructs a new exception with the specified detail message and
       * cause.  <p>Note that the detail message associated with
       * {@code cause} is <i>not</i> automatically incorporated in
       * this exception's detail message.
       *
       * @param message the detail message (which is saved for later retrieval
       *                by the {@link #getMessage()} method).
       * @param cause   the cause (which is saved for later retrieval by the
       *                {@link #getCause()} method).  (A <tt>null</tt> value is
       *                permitted, and indicates that the cause is nonexistent or
       *                unknown.)
       * @since 1.4
       */
      public ServiceException(String message, Throwable cause) {
          super(message, cause);
      }
  
      /**
       * Constructs a new exception with the specified cause and a detail
       * message of <tt>(cause==null ? null : cause.toString())</tt> (which
       * typically contains the class and detail message of <tt>cause</tt>).
       * This constructor is useful for exceptions that are little more than
       * wrappers for other throwables (for example, {@link
       * PrivilegedActionException}).
       *
       * @param cause the cause (which is saved for later retrieval by the
       *              {@link #getCause()} method).  (A <tt>null</tt> value is
       *              permitted, and indicates that the cause is nonexistent or
       *              unknown.)
       * @since 1.4
       */
      public ServiceException(Throwable cause) {
          super(cause);
      }
  
      /**
       * Constructs a new exception with the specified detail message,
       * cause, suppression enabled or disabled, and writable stack
       * trace enabled or disabled.
       *
       * @param message            the detail message.
       * @param cause              the cause.  (A {@code null} value is permitted,
       *                           and indicates that the cause is nonexistent or unknown.)
       * @param enableSuppression  whether or not suppression is enabled
       *                           or disabled
       * @param writableStackTrace whether or not the stack trace should
       *                           be writable
       * @since 1.7
       */
      protected ServiceException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
          super(message, cause, enableSuppression, writableStackTrace);
      }
  }
  