[jira] [Commented] (SLING-7204) OSGi R6 annotations: default value of an empty array is propagated as null

["Stefan Seifert (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-7204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16209255#comment-16209255 ] 

Stefan Seifert commented on SLING-7204:
---------------------------------------

we are using a class from felix to map the data from service properties to osgi annotations:
{{org.apache.felix.scr.impl.inject.Annotations#toObject}}

we're getting this class from:
{code:xml}
        <dependency>
            <groupId>org.apache.felix</groupId>
            <artifactId>org.apache.felix.scr</artifactId>
            <version>2.0.4</version>
            <scope>compile</scope>
        </dependency>
{code}

so osgi-mock itself is not doing anything for this mapping.

bq. I checked the generated SCR descriptors, and the property is missing. If I add a property to the default value, the property appears in the SCR descriptor. 
not sure what you meant here

> OSGi R6 annotations: default value of an empty array is propagated as null
> --------------------------------------------------------------------------
>
>                 Key: SLING-7204
>                 URL: https://issues.apache.org/jira/browse/SLING-7204
>             Project: Sling
>          Issue Type: Bug
>          Components: Testing
>    Affects Versions: Testing OSGi Mock 2.3.4
>            Reporter: Robert Munteanu
>
> I'm conferting some of the Oak code to use the OSGi R6 annotations. I have a config that declares a String[] property which defaults to empty, along the lines of:
> {code:java}
> @Component(configurationPolicy = ConfigurationPolicy.REQUIRE)
> public class CompositeNodeStoreService {
>     static @interface Configuration {
>         
>         /**
>          * Writes to these read-only paths won't fail the commit
>          */
>         String[] ignoreReadOnlyWrites() default {};
>     }
>     @Activate
>     protected void activate(Configuration cfg, ComponentContext context) throws IOException, CommitFailedException {
>         ignoreReadOnlyWritePaths = cfg.ignoreReadOnlyWrites()
> {code}
> In a unit test this should default to an empty array, but instead it is null. I checked the generated SCR descriptors, and the property is missing. If I add a property to the default value, the property appears in the SCR descriptor. Maybe a behaviour change in newer revisions of SCR?



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