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From "Clement Escoffier (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FELIX-3836) NPE when calling InstanceDescription.getDescription() ; // HandlerDescription is missing for org.apache.felix.ipojo.handlers.event:subscriber handler
Date Wed, 10 Dec 2014 07:44:12 GMT

    [ https://issues.apache.org/jira/browse/FELIX-3836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240772#comment-14240772
] 

Clement Escoffier commented on FELIX-3836:
------------------------------------------

[~sauthieg] is right. Fixing it right now.

> NPE when calling InstanceDescription.getDescription() ; //  HandlerDescription is missing
for org.apache.felix.ipojo.handlers.event:subscriber handler
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FELIX-3836
>                 URL: https://issues.apache.org/jira/browse/FELIX-3836
>             Project: Felix
>          Issue Type: Bug
>          Components: iPOJO
>            Reporter: Jérémy Cazaux
>            Assignee: Clement Escoffier
>             Fix For: ipojo-eventadmin-handler-1.8.2
>
>         Attachments: bug.png
>
>
> java.lang.NullPointerException
> 	at org.apache.felix.ipojo.architecture.InstanceDescription.getDescription(InstanceDescription.java:164)
> 	at org.apache.felix.ipojo.PrimitiveInstanceDescription.getDescription(PrimitiveInstanceDescription.java:165)
> NPE when executing this line in the InstanceDescription :    instance.addElement(m_handlers[i].getHandlerInfo()); 
> My component has 4 handlers : [org.ow2.jonas.ipojo.interceptor:interceptor, org.apache.felix.ipojo:provides,
org.apache.felix.ipojo.handlers.event:subscriber, org.apache.felix.ipojo:architecture]
> cazauxj@jonas$ inspect service capability 103
> JOnAS :: Services :: JOnAS report :: Extensions :: Deployables (103) provides services:
> ---------------------------------------------------------------------------------------
> component.class = org.ow2.jonas.report.extensions.deployables.internal.DeployablesReportExtension
> component.description = factory name="DeployablesReportExtension" bundle="103" state="valid"
implementation-class="org.ow2.jonas.report.extensions.deployables.internal.DeployablesReportExtension"
>         requiredhandlers list="[org.ow2.jonas.ipojo.interceptor:interceptor, org.apache.felix.ipojo:provides,
org.apache.felix.ipojo.handlers.event:subscriber, org.apache.felix.ipojo:architecture]"
>         missinghandlers list="[]"
>         provides specification="org.ow2.jonas.report.api.IReportExtension"
>         property name="namespace" type="java.lang.String" value="http://jonas.ow2.org/report/deployables/1.0"
>         property name="event.topics" type="java.util.Dictionary" value="{}"
>         property name="event.filter" type="java.util.Dictionary" value="{}"
>         inherited interfaces="[org.ow2.jonas.report.api.IReportExtension]" superclasses="[]"
> component.properties = [Lorg.apache.felix.ipojo.architecture.PropertyDescription;@19c59085
> component.providedServiceSpecifications = org.ow2.jonas.report.api.IReportExtension
> factory.name = DeployablesReportExtension
> factory.state = 1
> objectClass = org.apache.felix.ipojo.Factory, org.osgi.service.cm.ManagedServiceFactory
> service.id = 299
> service.pid = DeployablesReportExtension
> ----
> factory.name = DeployablesReportExtension
> instance.name = DeployablesReportExtension-0
> namespace = http://jonas.ow2.org/report/deployables/1.0
> objectClass = org.ow2.jonas.report.api.IReportExtension
> service.id = 303
> When debugging, it looks like that the array of HandlerDescription does contain the correct
number of element (4) but the element with index 2 is NULL. So the HandlerDescription is missing
for org.apache.felix.ipojo.handlers.event:subscriber handler. However, all HandlerManager
 are available from the InstanceManager (the HandlerManager associated to the subscriber handler
is not null). I have attached a picture to illustrate this.



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