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Re: [equinox-dev] Force particular bundle wirings to deal with split packages?

Yes itâs a very common misconception that the Framework always chooses the highest version it can find â I have to address this in every training course I run.

It *may* prefer the highest version if everything else about the resulting outcomes is equal. But that is an unrealistic assumption, and certainly not something that should be relied upon for proper functioning of your application.

Neil

On 20 Jun 2016, at 08:18, Peter Kriens <peter.kriens@xxxxxxxxx> wrote:

Note that a version bump does not guarantee that it will be the provider of the package. The framework can heuristics to do this but these are not specified to allow optimizations we could not foresee.

Another idea to use is to put the messed up packages on the frameworkâs classpath. This will export them from the framework side. Since these are resolved from the start and the uses constraints match the framework it is extremely unlikely they are not picked.

Youâre in a nice mess â

Kind regards,

Peter Kriens


On 17 jun. 2016, at 23:05, Brian de Alwis <briandealwis@xxxxxxxxx> wrote:

On 17-Jun-2016, at 1:08 PM, Neil Bartlett <njbartlett@xxxxxxxxx> wrote:
If youâre unable to change the bundles then no, not really. The only way is to not install these bundles that have exports of javax.annoation.

I ended up following the process we used with hollowing out javax.annotation: making a bundle that:

  • includes the other bundles as jars
  • âRequire-Bundle: system.bundleâ to pull in the JVMâs javax.annotation classes
  • Import-Package of the various javax.annotation packages in the bundled jars in case theyâre already around
  • Export-Package of the various javax.annotation packages in the bundled jars with a micro version bump to beat any of the existing jars.

That seems to work.

Brian.
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