Simple Environment Entries are not injected to Stateful Beans

Fields in Stateful Beans annotated as @Resource are not injected as described in J2EE 1.5 Specification (J2EE.5.4.1.1)

For bean declared as:

@Stateful(name = "Manager")

@Remote(Manager.class)

public class ManagerBean implements Manager, Serializable

{

@Resource String hostname;

[....]
}

and it's deployment descriptor

<ejb-jar>
<enterprise-beans>
<session>
<ejb-name>Manager</ejb-name>
<ejb-class>test.package.ManagerBean</ejb-class>
<session-type>Stateful</session-type>
<transaction-type>Container</transaction-type>
<env-entry>
<env-entry-name>hostname</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>localhost</env-entry-value>
</env-entry>
</session>
</enterprise-beans>
</ejb-jar>

there is not set field hostname. But accessing hostname value dynamically in such configuration using JNDI intrefaces work properly:

hostname = (String)new InitialContext().lookup("java:comp.ejb3/env/hostname

Field value is injected when DD has <injection-target> element.