# Simplest Possible EJB 3.1

@Statelesspublic class SimpleSample{    public void doSomething() { /*business logic*/  }}How to compile:You will need the the EJB 3.0 / 3.1 API in the classpath, or at least the @Stateless annotation.How to deploy: Just JAR the class and put the JAR into e.g: [glassfishv3-prelude-b23]\glassfish\domains\domain1\autodeployHow to use:e.g.: import javax.ejb.EJB;public class MyServlet extends HttpServlet{@EJBprivate SimpleSample sample;}And: there is no XML, strange configuration, libraries, additional frameworks or jars needed...  See also: EJB 3 series and EJB 3.1 From Legacy To Secret Weapon.[See also "Real World Java EE Patterns - Rethinking Best Practices", page 36]