@Named + @RequestScoped not working in JSF 2.0 with JBoss 7.1.1
I have a working @ManagedBean which I'd like to substitute with a @Named + @RequestScoped bean.
// Before
@ManagedBean
public class Login {
...
}
// After
import javax.enterprise.context.RequestScoped;
@Named
@RequestScoped
public class Login {
...
}
Everything works fine as long as I use @ManagedBean . @Named without @RequestScoped works but creates a new instance for each EL-expression. @Named + @RequestScoped however yields an exception: Unable to add request scoped cache item when request cache is not active
java.lang.IllegalStateException: Unable to add request scoped cache item when request cache is not active
at org.jboss.weld.context.cache.RequestScopedBeanCache.addItem(RequestScopedBeanCache.java:51)
at de.prosis.dafe.presentation.Login$Proxy$_$$_WeldClientProxy.getUsername(Login$Proxy$_$$_WeldClientProxy.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
...
Empty beans.xml does exist. Are there any gotchas or bugs that I'm not aware of? I bet I'm missing something but it does look like a bug. I googled the exception message but haven't found anything but the source of the class which raises it. Thanks in advance!
Update: It is related with code I omitted. The login bean tries to invalidate the session in its constructor, which fails if it is a named bean (not always, if I spam F5 it seems to works after a few times) and works as a managed bean. Can somebody explain that behaviour?
public Login() {
HttpSession session = (HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(false);
if (session != null) {
session.invalidate();
}
}
Code comes from that tutorial: http://www.greenkode.com/2011/09/user-authentication-and-authorization-using-jaas-and-servlet-3-0-login/
Fixed it by removing invalidation of the session in the constructor. I still don't know why @ManagedBean works and @Named does not.
I had the same problem. Switched from @ManagedBean (which was working) to @Named which didn't work. I had a beans.xml file in WEB-INF which didn't solve the problem like most people suggest. You can add @Stateless along with @Named to make it work for reasons I don't know! If anyone can explain that I would love to hear it.
Anyway, I am guessing the 'real' way to make @Named work is this: @Named will work if you import the correct @RequestScoped annotation; from the javax.enterprise.context package. The @RequestScoped annotation from the javax.faces.bean package is not compatible with the @Named annotation. If you omit the correct @RequestScoped from being alongside @Named the bean will fire but it won't read any properties. This is a very late reply but I hope it helps anyone else miffed by this.
ps. I use Glassfish so I doubt it's a JBoss problem.
Alan
I reckon that you are either outside of one of these scenarios or that JBoss AS 7 has another issues like this one.
BTW, a request scoped bean is not required to be serializable. Probably @SteveTaylor mixed it with session scoped beans.
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