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https://issues.apache.org/jira/browse/FELIX-5371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler resolved FELIX-5371.
-------------------------------------
    Resolution: Fixed

> ComponentDescriptorIO.java relies on XML tags order
> ---------------------------------------------------
>
>                 Key: FELIX-5371
>                 URL: https://issues.apache.org/jira/browse/FELIX-5371
>             Project: Felix
>          Issue Type: Bug
>          Components: SCR Tooling
>    Affects Versions: scr generator 1.14.0
>            Reporter: Sergey Bondarenko
>            Assignee: Carsten Ziegeler
>            Priority: Critical
>             Fix For: maven-scr-plugin 1.23.0, scr ant task 1.16.0, scr 
> generator 1.15.0, scr bnd plugin 1.6.0
>
>
> The parser relies implicitly on an order of tags in a component descriptor 
> XML.
> https://github.com/apache/felix/blob/1efe76fff7f4dcc5da5aa450ee8e7a774c874256/tools/org.apache.felix.scr.generator/src/main/java/org/apache/felix/scrplugin/xml/ComponentDescriptorIO.java#L546
> {code}
>                 } else if (localName.equals(IMPLEMENTATION)) {
>                     ...
>                     this.currentClass = new ClassDescription(cl, "classpath:" 
> + className);
>                     ...
>                 } else if (localName.equals(SERVICE)) {
>                     this.currentService = new ServiceDescription(null);
>                     this.currentClass.add(this.currentService);
> {code}
> This chunk of code expects <implementation> tag to happen before <service> 
> tag. If the order is reversed, then parsing files with NullPointerException 
> when trying to call "add" on an uninitialized variable.



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