In the ParametersInterceptor there is a method
protected void notifyDeveloperParameterException{..}
which logs developer stuff :
LOG.error(developerNotification);
if (action instanceof ValidationAware) {
// see https://issues.apache.org/jira/browse/WW-4066
Collection<String> messages = ((ValidationAware)
action).getActionMessages();
messages.add(message);
((ValidationAware) action).setActionMessages(messages);
}
It logs to the log file as an error, but sets it as actionMessages for
the UI, should this be actionErrors? For me actionMessages are for
success, whilst actionErrors are errors to do something.