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Re: [tycho-dev] Extending Tycho

If you can share your plugin and test project I'll try to have a look.

Also, I am not sure it is currently possible to introduce new packaging
types and have them recognized by Tycho.


On 1/31/2014, 18:20, Gunnar Wagenknecht wrote:

I started writing a Maven plug-in today which makes re-use of some Tycho
code. However, I seem to have issues with the whole project setup. Thus,
I'm seeking for advice on how to proceed.

Right now I'm stuck with:
org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to

     at org.eclipse.ebr.maven.BundleMojo.expandVersion(

There is some bug for this indicating that I have multiple versions of
Tycho in my class path. I believe that is not the case. I have verified
that all are of the same version. I beliebe it's related to the class
being loaded multiple times which might be related to the lot of
contained magic and dynamic loading under the covers that I'm not aware
of. If anybode run into this before and has some details to share I'd
really appreciate that.

FWIW, I was able to work around this by falling back to reflection. :( I
also tried adding my own packaging type, but it doesn't seem to get

I tried a declaration similar to AbstractTychoPackagingMojo in my Mojo:
  @Component(role = TychoProject.class)
  private Map<String, TychoProject> projectTypes;

But my project type does not appear in the list even though it's defined
correctly in the projects POM and recognized by Maven. Might be related
to the class loading issues?


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