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From "German Vega (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FELIX-5056) Error in service dependency field injection, when accessed from an inner class
Date Fri, 25 Sep 2015 09:52:04 GMT

    [ https://issues.apache.org/jira/browse/FELIX-5056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14907872#comment-14907872

German Vega commented on FELIX-5056:

After debugging the DependencyHandler, it seems that the problem is caused because the org.apache.felix.ipojo.handlers.dependency.Dependency
object representing the requirement is not registered as an interceptor of the inner class

Because of this, the Dependency object is not invoked onEntry and onFinally of the inner class
methods, and the dependency Usage counts are not correct. The stack counter of the Usage is
never decremented to zero, and so it always the reference to the first bound target.

The attached proposed patch seems to correct the problem in my case, but I have not run the
iPOJO regression tests to verify it.

> Error in service dependency field injection, when accessed from an inner class
> ------------------------------------------------------------------------------
>                 Key: FELIX-5056
>                 URL: https://issues.apache.org/jira/browse/FELIX-5056
>             Project: Felix
>          Issue Type: Bug
>          Components: iPOJO
>    Affects Versions: ipojo-runtime-1.12.1
>            Reporter: German Vega
> A component defines a simple mandatroy dependency, with an injected field. 
> When the field is accessed in one of the methods of an inner class of the component,
it is not always updated when the target of the dependency changes. 
> The error doesn't happen all the time, work well for some dependencies. For a given dependency,
sometimes it seems to work depending on  the invoking thread.
> WORKAROUND : define a private method in the component to acces the field, and invoke
this method from the inner class (instead of accessing the field directly)

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