Response classResponseprivatestaticfinalbooleanFAILURE=false;privatefinalbooleansuccess;privatefinalstringmessage; private final string message; private Response(boolean success, String message) f this, success = success; this, message = message; ) public boolean isSuccess() \{ return success; \} public String getMessage() \{ return message; static Response fail(String message) \{ return new Response(FAILURE, message); \} Exceptions TaskAlreadyExists public class TaskAlreadyExists extends RuntimeException \{ private final string title; Response classResponseprivatestaticfinalbooleanFAILURE=false;privatefinalbooleansuccess;privatefinalstringmessage; private final string message; private Response(boolean success, String message) f this, success = success; this, message = message; ) public boolean isSuccess() \{ return success; \} public String getMessage() \{ return message; static Response fail(String message) \{ return new Response(FAILURE, message); \} Exceptions TaskAlreadyExists public class TaskAlreadyExists extends RuntimeException \{ private final string title