Hi,
On 19.01.11 12:59, "peter lawrey" <[email protected]> wrote:
>We are using iPOJO 1.6.2 and I have a method as follows. Is this a valid
>combination of options as I am getting a null value passed to it when a
>ClockSubscriber is added. (At startup they were added fine, but when I
>remove&add back a component it is always null)
Definitely weird.
Could you try, to remove the @Requires and to populate the array/list
yourself from the bind?
Are you sure that your bundle can get the service (classloading), i.e.
Make sure it's importing the service interface and the providers are also
importing it ?
Anyway, I'd like to have an in-depth view (iPOJO should say something in
this case), do you have a way to reproduce the issue easily?
Regards,
Clement
>
>
>
>@Requires)optional = true, id = "subscribers")
>
>private ClockSubscriber[] subscribers;
>
>
>
>@Bind(aggregate = true, id = "subscribers", optional = true)
>
>public void subscriberBound(ClockSubscriber subscriber) {
>
> try {
>
> if(subscriber == null) throw new NullPointerException();
>
>
>
>And this exception
>
>
>
>java.lang.NullPointerException
>
> at
>com.edgeci.patch.ClockManager2.__subscriberBound(ClockManager2.java:153)
>
> at
>com.edgeci.patch.ClockManager2.subscriberBound(ClockManager2.java)
>
> at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source)
>
> at
>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
>Impl.java:25)
>
> at java.lang.reflect.Method.invoke(Method.java:597)
>
> at org.apache.felix.ipojo.util.Callback.call(Callback.java:235)
>
> at
>org.apache.felix.ipojo.handlers.dependency.DependencyCallback.call(Depen
>dencyCallback.java:239)
>
> at
>org.apache.felix.ipojo.handlers.dependency.Dependency.invokeCallback(Dep
>endency.java:288)
>
> at
>org.apache.felix.ipojo.handlers.dependency.Dependency.callBindMethod(Dep
>endency.java:330)
>
> at
>org.apache.felix.ipojo.handlers.dependency.Dependency.onServiceArrival(D
>ependency.java:445)
>
> at
>org.apache.felix.ipojo.util.DependencyModel.manageArrival(DependencyMode
>l.java:392)
>
> at
>org.apache.felix.ipojo.util.DependencyModel.addedService(DependencyModel
>.java:335)
>
> at
>org.apache.felix.ipojo.util.Tracker$Tracked.trackAdding(Tracker.java:725
>)
>
> at
>org.apache.felix.ipojo.util.Tracker$Tracked.track(Tracker.java:686)
>
> at
>org.apache.felix.ipojo.util.Tracker$Tracked.serviceChanged(Tracker.java:
>647)
>
> at
>org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCal
>lback(EventDispatcher.java:878)
>
> at
>org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(Eve
>ntDispatcher.java:732)
>
> at
>org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDi
>spatcher.java:662)
>
> at
>org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:3603)
>
> at org.apache.felix.framework.Felix.access$000(Felix.java:40)
>
> at
>org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:624)
>
> at
>org.apache.felix.framework.ServiceRegistry.registerService(ServiceRegist
>ry.java:90)
>
> at
>org.apache.felix.framework.Felix.registerService(Felix.java:2716)
>
> at
>org.apache.felix.framework.BundleContextImpl.registerService(BundleConte
>xtImpl.java:252)
>
> at
>org.apache.felix.ipojo.IPojoContext.registerService(IPojoContext.java:33
>8)
>
> at
>org.apache.felix.ipojo.handlers.providedservice.ProvidedService.register
>Service(ProvidedService.java:339)
>
> at
>org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler._
>_stateChanged(ProvidedServiceHandler.java:489)
>
> at
>org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.s
>tateChanged(ProvidedServiceHandler.java)
>
> at
>org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:441
>)
>
> at
>org.apache.felix.ipojo.InstanceManager.start(InstanceManager.java:322)
>
> at
>org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.
>java:155)
>
> at
>org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory
>.java:301)
>
> at
>org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory
>.java:238)
>
> at
>org.apache.felix.ipojo.IPojoFactory.updated(IPojoFactory.java:625)
>
> at
>org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(Co
>nfigurationManager.java:1460)
>
> at
>org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:88)
>
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