WildFly not loading @WebListener class on startup

[Lucas Guimarães Bernardes (skypartan)]

Hello,

I'm currently trying to migrate a Java EE application from Payara platform to WildFly. Our application is running on Java EE 8 and as such we are trying to use WildFly 26.1.2.Final as our current target version. The problem I've found is that the exact same war used to deploy the application into payara fails to start on wildfly. We have a ServletContextListener class annotated with @WebListener that loads the required system configurations on startup, mainly database and cache connection details, however it never runs on wildfly, only payara. There are no "metadata-complete" definitions on the web.xml, and manually specifying a <listener> tag also doesn't work.

The listener class definition is essentially the following, there are no funky custom logic, just a simple "contextInitialized".

@WebListener

public class ServletListener implements ServletContextListener {

    @Override

    public void contextInitialized(ServletContextEvent servletContextEvent) {

         carregarConfiguracoes(); // load config file

         inicializarCache(); // initialize cache

    }

}

Any help is very much appreciated.

[frank.l...@outlook.de]

We're using the same since many years over many releases of JBoss AS / Wildfly.

How ist your application packaged and deployed ?

war file standalone or a war file inside an ear archive ?

Did you include a web-app.xml file here ?