@ExceptionHandler(Exception.class)
public ResponseEntity<String> exceptionHandler(Exception e) {

//statements  
}

@ExceptionHandler(Exception.class)
public ResponseEntity<String> exceptionHandler() {

//statements  
}

@ExceptionHandler()
public ResponseEntity<String> exceptionHandler(Exception e) {

//statements  
}

@ExceptionHandler
public ResponseEntity<String> exceptionHandler(Exception e) {

//statements  
}