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  1. Weld
  2. WELD-1484

Injection of @Singleton bean into @SessionScoped bean fails with error WELD-001413

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    • Bug
    • Resolution: Won't Do
    • Blocker
    • None
    • 2.0.2.Final
    • Scopes & Contexts
    • None
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      The following three classes are needed to reproduce:

      @javax.inject.Singleton
public class SingletonBean {
}

      @javax.enterprise.context.SessionScoped
public class SessionBean implements java.io.Serializable {
    @javax.inject.Inject SingletonBean singletonBean;
}

      public class Main {
    public static void main(String[] args) {
        new org.jboss.weld.environment.se.Weld().initialize();
    }
}
      Show
      The following three classes are needed to reproduce: @javax.inject.Singleton public class SingletonBean { } @javax.enterprise.context.SessionScoped public class SessionBean implements java.io.Serializable { @javax.inject.Inject SingletonBean singletonBean; } public class Main { public static void main( String [] args) { new org.jboss.weld.environment.se.Weld().initialize(); } }

    Description

      Injecting a @Singleton bean into a @SessionScoped bean fails with the following error message:

      Exception in thread "main" org.jboss.weld.exceptions.UnserializableDependencyException: WELD-001413 The bean Managed Bean [class SessionBean] with qualifiers [@Any @Default] declares passivating scope but has non-passivation-capable dependency Managed Bean [class SingletonBean] with qualifiers [@Any @Default]

      A quick look into the code revealed the following in Managedbean at line 111

      this.passivationCapableDependency = isNormalScoped() || (isDependent() && passivationCapableBean);

      Meaning that a the singleton beans can never be flagged as passivation capable dependencies because the @Singleton scope is not annotated as normale scoped and, obviously, the beans are not dependent.

      But this is against the CDI 1.1 specification 6.6.3 which clearly states that:

      The container must guarantee that:
      ...
      all singleton beans are passivation capable dependencies,
      ...

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          relates to

          Clarification - A clarification needed to a specification based on community feedback CDI-397 Clarify Section 6.6.3 regarding singletons

          • Minor - To be worked after urgent, high, and medium priorities are resolved. This term is chosen when the severity of the issue is low, or the complexity or effort to correct it may be higher, relatively speaking. For low priority issues, known workarounds exist or are not needed due to the trivial effort needed to address the issue.
          • Closed

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              rhn-engineering-jharting Jozef Hartinger
              rbaradari Ramin Baradari (Inactive)
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                Created:
                Updated:
                Resolved: