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https://issues.apache.org/jira/browse/ARIES-17?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763391#action_12763391
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Alasdair Nottingham commented on ARIES-17:
------------------------------------------

On 2) the context.lookup("osgi:services/<interfaces>") does return the best 
ranked service. The OSGi framework returns the ServiceReference in the correct 
order according to service id and service ranking, so in the ServiceHelper all 
we need to do is return the first service we found.

> ServiceHelper registry lookup problems
> --------------------------------------
>
>                 Key: ARIES-17
>                 URL: https://issues.apache.org/jira/browse/ARIES-17
>             Project: Aries
>          Issue Type: Bug
>          Components: JNDI
>            Reporter: Jarek Gawor
>
> 1) ServiceHelper is using getAllServiceReferences() to get a list of services 
> on the client's bundle context. That can return services which might be 
> incompatible with the bundle classloader.  I think the getServiceReferences() 
> should be used instead.
> 2) The context.lookup("osgi:services/<interface>") should return a best 
> ranking service registered with that interface. However, the 
> ServiceHelper.getService() function seems to return a first service that it 
> finds.

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