[tycho-dev] Extending Tycho

[Gunnar Wagenknecht <gunnar@xxxxxxxxxxxxxxx>]

Hi,

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:
java.lang.ClassCastException: 
org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast 
to org.eclipse.tycho.ReactorProject
	at 
org.eclipse.tycho.core.osgitools.DefaultReactorProject.adapt(DefaultReactorProject.java:45) 

	at org.eclipse.ebr.maven.BundleMojo.expandVersion(BundleMojo.java:331)

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 
recognized.

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?

-Gunnar

--
Gunnar Wagenknecht
gunnar@xxxxxxxxxxxxxxx