Question

I have one plain .java class. In that class I’m using a Timer class schedule method, to schedule a task.

The problem is I’m using a Java EE application, and I dont know where to intantiate this class; from a Servlet or any thing like that? I want to instantiate that class only once when my application goes up.

Answer 1

You probably need a ServletContextListener and its method contextInitialized(..). It is invoked once, when your application is initialized.

You map the listener with either @WebListener or with <listener><listener-class>..</...> in web.xml