Hi Mike! That should work, as this will be set by the EJB container. What die you use to start your unit tests? TomEE-Arquillian? or DeltaSpike CdiControl-tomee ? Stock CDI is not enough in that case, this really needs an EJB container for handling JMS ...
If you use OpenEJB, then you will get OpenWebBeans transitively (OpenEJB uses OWB for handling all the CDI parts). Regarding the @Singleton question in the other post: * how many instances do you get if you have this Singleton in a JVM? * how many instances do you get if you have this Singleton in multiple JVMs? * how many instances do you get if you have this Singleton in multple WARs? The term 'Singleton' is really completely useless without knowing the exact scope of it. E.g. a @SessionScoped bean could be thought of as a 'session-singleton', got it? LieGrue, strub ----- Original Message ----- > From: Mike Olson <[email protected]> > To: [email protected] > Cc: > Sent: Thursday, January 17, 2013 6:28 PM > Subject: Re: WebBeans context with scope type annotation @Singleton does not > exist within current thread > > On 1/17/2013 2:54 AM, Mark Struberg wrote: > > > Hi Mark, > > I made the change so I no longer use the Singleton scope. > > Now I get a very similar error saying "WebBeans context with scope > type annotation @ApplicationScoped does not exist within current thread". > > This is occurring in my onMessage callback on a JMS MessageListener. > > Based on what I have read, ApplicatonScoped beans should be available > "during any message delivery to a MessageListener for a JMS topic or > queue obtained from the Java EE component environment". > > Am I missing something? Do I need to have openwebeans-jms included > in my project? I have not found too much documentation on what that > project provides. Looking at the sample it seems to deal with binding > Queues/Topics to specific names defined in the beans.xml file, but maybe > it adds support for more. > > If not the jms project, then do I need to use the ContextControl > class in every single one of my message handlers? > > Thanks > Mike > >> Hi Mike, that's an easy one :) >> >> You tried to access a @javax.inject.Singleton scoped bean in a Thread where > this context didn't get activated. >> >> I generally recommend against using the atinject @Singleton! Contrary to > the javax.ejb.Singleton it has an undefined lifecycle, so it's barely > useful. Please use a simple @ApplicationScoped instead. >> >> LieGrue, >> strub >> >> >> >> PS: if you start new Threads manually yourself, then please look at > DeltaSpike-CdiCtrl ContextControl. >> >> >> >> ----- Original Message ----- >>> From: Mike Olson <[email protected]> >>> To: [email protected] >>> Cc: >>> Sent: Thursday, January 17, 2013 9:52 AM >>> Subject: WebBeans context with scope type annotation @Singleton does > not exist within current thread >>> >>> Hello, >>> >>> >>> I am trying to figure out exactly what this exception is trying to > tell me. I >>> have multiple web applications that are communicating with JMS and this > is >>> occurring during a MessageListener call back so my assumption is that > it has >>> something to do with being multi-threaded. However, I am also using > the >>> "Provider" again so it could be another issue with that. >>> >>> I am doing something similar to: >>> >>> @Inject >>> Provider<Foo> fooProvider; >>> >>> public void onMessage(Message m) { >>> fooProvider.get(); >>> } >>> >>> >>> In the ".get()" call is where the exception occurs. I have > been >>> through the code and inspected all of the Inject fields in the class > hierarchy >>> of "Foo". There are some that are scoped as @Singleton. I > have >>> removed that scope from all of them, but I still get the same > exception. >>> >>> >>> Anyone have any ideas? Here is the traceback. >>> Thanks >>> Mike >>> >>> >>> javax.enterprise.context.ContextNotActiveException: WebBeans context > with scope >>> type annotation @Singleton does not exist within current thread >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getContext(BeanManagerImpl.java:351) >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:861) >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:759) >>> at >>> > org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:136) >>> at >>> > org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:59) >>> at >>> > org.apache.webbeans.component.AbstractInjectionTargetBean.injectField(AbstractInjectionTargetBean.java:387) >>> at >>> > org.apache.webbeans.component.AbstractInjectionTargetBean.injectFields(AbstractInjectionTargetBean.java:324) >>> at >>> > org.apache.webbeans.portable.creation.InjectionTargetProducer.inject(InjectionTargetProducer.java:95) >>> at >>> > org.apache.webbeans.component.InjectionTargetWrapper.inject(InjectionTargetWrapper.java:76) >>> at >>> > org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:181) >>> at >>> > org.apache.webbeans.context.DependentContext.getInstance(DependentContext.java:70) >>> at > org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:132) >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:872) >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:753) >>> at >>> > org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:136) >>> at >>> > org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:59) >>> at >>> > org.apache.webbeans.component.AbstractInjectionTargetBean.injectField(AbstractInjectionTargetBean.java:387) >>> at >>> > org.apache.webbeans.component.AbstractInjectionTargetBean.injectSuperFields(AbstractInjectionTargetBean.java:368) >>> at >>> > org.apache.webbeans.portable.creation.InjectionTargetProducer.inject(InjectionTargetProducer.java:93) >>> at >>> > org.apache.webbeans.component.InjectionTargetWrapper.inject(InjectionTargetWrapper.java:76) >>> at >>> > org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:181) >>> at >>> > org.apache.webbeans.context.DependentContext.getInstance(DependentContext.java:70) >>> at > org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:132) >>> at >>> > org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:872) >>> at >>> > org.apache.webbeans.inject.instance.InstanceImpl.get(InstanceImpl.java:126) >>> >>> -- Mike Olson >>> > > > -- > Mike Olson >
