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Re: [tycho-user] Resolution of packages containing "impl" in their names

Thanks Lee,
  Please see below

On 21/12/2015 18:57, Lee Carver wrote:
Cristiano -

If you are trying to OSGi-ify a third-party library (TPL), I've had a lot of success with a "wrapper" jar that contains the raw TPL jar as an embedded member. 

One of the more complex examples is this OSGi bundling for JOGL:

By tweaking the Export-Package element, it is possible to expose all sort of internal packages.

I've already done this. The MANIFEST of the osgified library exports all I need.
The problem is with Tycho not resolving the packages containing the "impl" word in their names.
Let me know if you have any questions.

- Lee

On Mon, Dec 21, 2015 at 2:35 AM, De Alti, Cristiano <Cristiano.DeAlti@xxxxxxxxxxxx> wrote:


  Il looks like Tycho has problems resolving the imports from bundles exporting packages which contain "impl" in their names.

I understand that importing "impl" or "internal" packages is a bad idea and that other plugins (e.g. maven-bundle-plugin) by default don't export these packages but I'm trying to OSGi-fy an existing third party library and I need to import all of it's packages in another bundle.

Tycho complains (only) on these packages:

Resolution errors:
   Bundle org.eclipse.kura.protocol.zigbee - Missing Constraint: Import-Package: org.bubblecloud.zigbee.api.cluster.impl.api.core; version="2.0.3.SNAPSHOT"
   Bundle org.eclipse.kura.protocol.zigbee - Missing Constraint: Import-Package:; version="2.0.3.SNAPSHOT"

Note that the OSGi-fied library exports the packages in the MANIFEST, for example:;x-internal:=false;version="2.0.3.SNAPSHOT"

I had to add the "x-internal:=false" to suppress Eclipse "Access restriction" errors.

The above happens with Tycho 0.20 and 0.24.

Is there something else I could try before giving up and embedding the third party jar to the lib/ directory of my bundle?

Is this behavior (filtering "impl" packages) documented anywhere?



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Cristiano De Alti
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