@@ -0,0 +1,435 @@
+package com.github.yaoshengzhe.yraft.exception;%0A%0Apublic class UnknownRaftMessageException extends Exception %7B%0A%0A  public UnknownRaftMessageException() %7B%0A    super();%0A  %7D%0A%0A  public UnknownRaftMessageException(String message) %7B%0A    super(message);%0A  %7D%0A%0A  public UnknownRaftMessageException(String message, Throwable cause) %7B%0A    super(message, cause);%0A  %7D%0A%0A  public UnknownRaftMessageException(Throwable cause) %7B%0A    super(cause);%0A  %7D%0A%7D%0A%0A

add exception package