[CONF] Apache Felix: Apache Felix Bundle Plugin FAQ (page edited)

[confluence]

Page Edited : FELIX : Apache Felix Bundle Plugin FAQ Apache Felix Bundle Plugin FAQ has been edited by Richard S. Hall (Sep 17, 2008). (View changes) Content: Apache Felix Bundle Plugin Frequently Asked Questions Apache Felix Bundle Plugin Frequently Asked Questions When I embed a dependency why do I see duplicated content? When I embed a dependency why do I see duplicated content? Having two copies of classes, both unpacked and embedded as jars, is a sign that your Embed-Dependency and Export-Package instructions are overlapping. Export-Package tells BND to pull in classes found in the named packages from the build classpath and add them to the bundle, Embed-Dependency tells BND to embed (or inline if enabled) whole artifacts in the bundle. so say I have: Export-Package: org.objectweb.asm.* and I have the asm artifact as a compile scope dependency, then I would see the org.objectweb.asm classes unpacked in the bundle, ie. pulled in by BND. say I now decide to embed asm as a jar, for example with: Embed-Dependency: *;scope=compile|runtime I would now see the asm artifact embedded inside bundle - but I would also see the unpacked classes from before, because I'm still asking BND to pull them in (you will probably also see split package warnings during the build). ok - so how do I embed asm as a jar, but mark its packages as exported without pulling in the unpacked classes... well, there is another export instruction added for exactly this reason: -exportcontents: org.objectweb.asm.* (this is <_exportcontents> in the POM because a tag can't start with '-') this instruction is merged with Export-Package, after BND has decided on the content of the bundle - that is, it works just like Export-Package except that it won't alter the content of the bundle. So by removing org.objectweb.asm.* from Export-Package and using the -exportcontents instruction instead along with Embed-Dependency, I can now embed the asm artifact in my bundle and export its packages: Embed-Dependency: *;scope=compile|runtime -exportcontents: org.objectweb.asm.*

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