Once an exception is thrown on a conseuqence the current session is considered invalid. You'll need to add the try catch inside of the actual consequence.

Mark
Yang Song wrote:

Hi,

Anyone knows how to catch the exception when firing the rules?

I wrapped the session.fireAllRules() method using try...catch, however it doesn't work: when someone wrote bad code in the rule's action part, the Exception will be thrown and printed to the stderr, and this will make the rule engine stop working -- the try...catch outside doesn't help anything.

If  the exception thrown from the rule's action part can be caught externally, the system can be protected from interrupting Exception.

try {
        _log.debug("Firing rules in : " + getName());

        session.fireAllRules();

} catch (Exception e) {
        _log.info("Error when firing rules: ", e);
}

Thanks,
Yang
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