How to re-throw exception in AspectJ around advise

Question

I have some methods which throws some exception, and I want to use AspectJ around advise to calculate the execution time and if some exception is thrown and to log into error lo

Answer 1

you can avoid catching the exceptions and just use a try/finally block without the catch. And if you really need to log the exception you can use an after throwing advice, like this:

public aspect AspectServerLog {

    public static final Logger ERR_LOG = LoggerFactory.getLogger("error");

    Object around() : call (* com.abc.Iface.* (..)) {

        StopWatch watch = new Slf4JStopWatch();

        try {
            return proceed();
        } finally {
            watch.stop(thisJoinPoint.toShortString());
        }
    }

    after() throwing (Exception ex) : call (* com.abc.Iface.* (..)) {
        StringBuilder mesg = new StringBuilder("Exception in ");
        mesg.append(thisJoinPoint.toShortString()).append('(');
        for (Object o : thisJoinPoint.getArgs()) {
            mesg.append(o).append(',');
        }
        mesg.append(')');

        ERR_LOG.error(mesg.toString(), ex);
    }

}