4.0.0 com.baeldung.singletonsession singleton-ejb-bean 1.0.0-SNAPSHOT EJB Singleton Session Bean com.baeldung.spring.ejb ejb-for-spring 1.0.1 javax javaee-api ${javaee.version} provided org.apache.openejb tomee-embedded ${tomee-embedded.version} 1.7.5