[equinox-dev] Issue using tycho-maven-plugin

[Niranjan Karunanandham <niranjan.karu@xxxxxxxxx>]

Hi all,

I have used the tycho-equinox to wrote a custom plugin which is used to install the features and create the product. The reason I have created my own plugin (instead of using tycho-maven-plugin) was to have my own parameters in the pom.xml of the feature and in the product. The tycho-equinox version 0.13.0 and it works without any issue.

I now have a requirement to define a custom p2 touchpoint. As per [1], this is supported from tycho version 0.16.0 and using the <directorRuntime> as standalone in the product pom (referred [2]). Therefore I have upgraded my custom plugin's dependency of tycho to 0.23.1 and used the from my code called the StandaloneDirectorRuntimeFactory class. The issue that I am facing here is in the code below:

Artifact artifact = repositorySystem.createArtifact("org.eclipse.tycho", "tycho-standalone-p2-director",

        TychoVersion.getTychoVersion(), "eclipse-repository"); 

In my code during runtime (product building), it calls the default implementation of createArtifact and not the implementation in LegacyRepositorySystem class. Because of this am not getting the correct location of the zip file from the local repository (.m2). How do I fix this so that it pulls from the implementation class (LegacyRepositorySystem), i.e., the same way as tycho-p2-director-plugin in my custom p2 plugin?

As a workaround, I put the following in my product pom but this gives an error [3]. Any idea as to why this is?

<plugin>
    <groupId>org.eclipse.tycho</groupId>
    <artifactId>tycho-maven-plugin</artifactId>
    <version>0.23.1</version>
    <extensions>true</extensions>
</plugin>

[1] - https://bugs.eclipse.org/bugs/show_bug.cgi?id=351487

[2] - https://github.com/eclipse/tycho/blob/master/tycho-its/projects/product.metaRequirements/product/pom.xml#L40

[3] - 

[ERROR] Internal error: java.lang.ClassCastException: org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to org.eclipse.tycho.ReactorProject -> [Help 1]

org.apache.maven.InternalErrorException: Internal error: java.lang.ClassCastException: org.eclipse.tycho.core.osgitools.DefaultReactorProject cannot be cast to org.eclipse.tycho.ReactorProject

at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:121)

at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)

at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)

at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:497)

at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)

at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)

at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)

at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

Caused by: 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.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:70)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:266)

at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)

at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)

... 11 more

[ERROR] 

Regards,

Nira

--

Niranjan Karunanandham