org.apache.webbeans.component.ProducerMethodBean is not applicable for the bean instance : String

[Emmanuel Touzery]

Hello,

    I'm porting a Glassfish application to TomEE and I don't understand 
this error that I'm getting:

org.apache.openejb.core.transaction.EjbTransactionUtil handleSystemException
SEVERE: EjbTransactionUtil.handleSystemException: Given bean type : 
class org.apache.webbeans.component.ProducerMethodBean is not applicable 
for the bean instance : String, Name:loggedInAppUserUsername, WebBeans 
Type:PRODUCERMETHOD, API 
Types:[java.lang.Comparable<String>,java.lang.Object,java.lang.CharSequence,java.lang.String,java.io.Serializable], 
Qualifiers:[javax.enterprise.inject.Default,javax.enterprise.inject.Any,javax.inject.Named]
java.lang.IllegalArgumentException: Given bean type : class 
org.apache.webbeans.component.ProducerMethodBean is not applicable for 
the bean instance : String, Name:loggedInAppUserUsername, WebBeans 
Type:PRODUCERMETHOD, API 
Types:[java.lang.Comparable<String>,java.lang.Object,java.lang.CharSequence,java.lang.String,java.io.Serializable], 
Qualifiers:[javax.enterprise.inject.Default,javax.enterprise.inject.Any,javax.inject.Named]
    at 
org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:703)
    at 
com.lecip.tms.tms_core.application.BeanHelper.getBeanByName(BeanHelper.java:40)

I'm having this pretty trivial bean:


public class AppUserUsernameProvider {

    public static final String LOGGED_IN_USERNAME = 
"loggedInAppUserUsername";
    @Inject
    CurrentAppUserContext mAppUserContext;

    @Produces
    //this bean will be looked up by this id
    @Named(LOGGED_IN_USERNAME)
    public String getUsername() {
        return mAppUserContext.getUsername();
    }
}

And then I'm trying to use it like that:

        String username = 
BeanHelper.getBeanByName(AppUserUsernameProvider.LOGGED_IN_USERNAME, 
String.class);

And it fails on the getBeanByName() call with the stack I pasted. Not 
sure what's going on?

Thank you!

Emmanuel