public boolean execute(ActionContext actionCtx) throws Exception 
{
        // Look up the exception that was thrown
        Exception exception = actionCtx.getException();
        if (exception == null) {
            LOG.warn("No Exception found in ActionContext");
            return (true);
        }
        // Look up the local or global exception handler configuration
        ExceptionConfig exceptionConfig = null;
        ActionConfig actionConfig = actionCtx.getActionConfig();
        ModuleConfig moduleConfig = actionCtx.getModuleConfig();
        if (actionConfig != null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("See if actionConfig " + actionConfig
                    + " has an exceptionConfig for "
                    + exception.getClass().getName());
            }
            exceptionConfig = actionConfig.findException(exception.getClass());
        } else if (moduleConfig != null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("No action yet, see if moduleConfig " + moduleConfig
                    + " has an exceptionConfig "
                    + exception.getClass().getName());
            }
            exceptionConfig = moduleConfig.findException(exception.getClass());
        }
        // Handle the exception in the configured manner
        if (exceptionConfig == null) {
            LOG.warn("Unhandled exception", exception);
            throw exception;
        }
        ForwardConfig forwardConfig =
            handle(actionCtx, exception, exceptionConfig, actionConfig,
                moduleConfig);
        if (forwardConfig != null) {
            actionCtx.setForwardConfig(forwardConfig);
            return (false);
        } else {
            return (true);
        }
}

Invoke the appropriate Action for this request, and cache the returned ActionForward.

 abstract protected ForwardConfig handle(ActionContext context,
    Exception exception,
    ExceptionConfig exceptionConfig,
    ActionConfig actionConfig,
    ModuleConfig moduleConfig) throws Exception
Perform the required handling of the specified exception.