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Re: [m2e-users] Why does m2e offer bundle artifacts when the underlying POM doesn't know about them?
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Type is actually determined only by the packaging of the referenced artifact’s pom. Therefore m2e behaves 100% correct.
Whether a JAR (or more accurate, the manifest within) actually contains OSGi specific headers doesn’t matter here.
Just as a side note:
Actually, even if the type is set to bundle this will not make Maven treat the dependency any different than a regular JAR (see also https://issues.apache.org/jira/browse/FELIX-4303).
Other bundle artifacts do not even have a dedicated packaging, since e.g. the bnd-maven-plugin uses the maven-jar-plugin and also its packaging (https://github.com/bndtools/bnd/tree/master/maven/bnd-maven-plugin).
Konrad
> Am 25.05.2016 um 19:38 schrieb David M. Karr <davidmichaelkarr@xxxxxxxxx>:
>
> For a while I've been struggling with an issue where I see the search facility in the "Add" dialog offering some artifacts that are "jar" artifacts, and some that are "bundle" artifacts. I know the basic difference between them. The funny thing is, I believe that these artifacts are all structured similarly, so I'm not sure why it thinks some are "bundle" artifacts and some are "jar".
>
> I think I found a clue that might explain that last point. I looked at the two pom artifacts (one m2e says is a "bundle", the other a "jar"), and the only significant difference is that the "bundle" artifact has a "packaging" property set to "bundle". the other doesn't have a packaging property. Ironically, the "jar" artifact's pom uses the "maven-bundle-plugin" (with extensions = true), but I guess that isn't enough for m2e to recognize it as a bundle.
>
> The bigger problem is that m2e is offering these "bundle" artifacts into a pom that doesn't necessarily know what a bundle is. After I store the dependency reference to the bundle artifact, the project fails to build. If I manually edit the properties of the dependency, changing it to a "jar", it works fine.
>
> I know understand that I have to add the "maven-bundle-plugin" reference to the pom for this to work, but the underlying question is, why does m2e offer bundle artifacts into a pom that doesn't know what bundle artifacts are?
>
> I imagine the obvious answer is "because it doesn't know not to", or some variation of that.
>
> Before I file a bug report, would it be a reasonable enhancement to expect the m2e search facility in the "Add" dialog to introspect the pom and determine whether bundles can be used in the pom in question, and if not, offer bundle artifacts as jar artifacts instead?
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