tycho-p2-extras-plugin:3.0.0 PluginExecutionException

[marcellorinaldo]

Hello, I'm facing these errors while trying to compile my maven project with the plugin tycho-p2-extras-plugin on Tycho v. 3.0.0:

Execution default of goal org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.0:publish-features-and-bundles failed: Unable to load the mojo 'publish-features-and-bundles' (or one of its required components) from the plugin 'org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.0': com.google.inject.ProvisionException: Unable to provision, see the following errors:
[ERROR] 
[ERROR] 1) Error injecting: private org.eclipse.equinox.p2.core.IProvisioningAgent org.eclipse.tycho.plugins.p2.extras.PublishFeaturesAndBundlesMojo.agent
[ERROR]   while locating org.eclipse.tycho.plugins.p2.extras.PublishFeaturesAndBundlesMojo
[ERROR]   at ClassRealm[plugin>org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.0, parent: jdk.internal.loader.ClassLoaders$AppClassLoader@531d72ca] (via modules: org.eclipse.sisu.wire.WireModule -> org.eclipse.sisu.plexus.PlexusBindingModule)
[ERROR]   while locating org.apache.maven.plugin.Mojo annotated with @com.google.inject.name.Named(value="org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.0:publish-features-and-bundles")
[ERROR] 
[ERROR] 1 error
[ERROR]       role: org.apache.maven.plugin.Mojo
[ERROR]   roleHint: org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.0:publish-features-and-bundles: Can not set org.eclipse.equinox.p2.core.IProvisioningAgent field org.eclipse.tycho.plugins.p2.extras.PublishFeaturesAndBundlesMojo.agent to org.eclipse.tycho.p2maven.DefaultProvisioningAgent
[ERROR] -> [Help 1]

I'm currently using Java 17.0.4.1 and Maven 3.8.6. Using Tycho 2.7.5 everything works as expected.

[laeubi]

Please make sure that the tycho-maven-plugin is activated in your build with option extension=true as for example here:

https://github.com/eclipse-tycho/tycho/blob/1bda92601f35c79a2a54ae7d9e49ed6f6b826326/demo/itp01/pom.xml#L28-L33

[marcellorinaldo]

Thanks for the reply. Interestingly, I've the extension flag already set to true as in the example, but by removing it the plugin gets executed anyways and returns no error.

[marcellorinaldo]

I have created a simple example to reproduce the issue on this link: https://github.com/marcellorinaldo/issue-example

[kjsmita6]

Having this as well. @laeubi Does tycho-maven-plugin need to be defined in the same pom as the one being executed? I have it in a parent pom which is normally fine for the rest of our build which uses Tycho.

[laeubi]

If it is activated in the parent yes, having it in the management section is not enough. If someone can provide an integration-test to demonstrate the issue this would be very helpful.

Another option is to try out the current tycho snapshot build to see if problem is probably already fixed with Tycho 4.x

[marcellorinaldo]

If it is activated in the parent yes, having it in the management section is not enough. If someone can provide an integration-test to demonstrate the issue this would be very helpful.

Another option is to try out the current tycho snapshot build to see if problem is probably already fixed with Tycho 4.x

Will try in my spare time

[chrislake]

I too have seen exactly the same error. As soon as the <extensions>true</extensions> is removed from the pom, the PublishFeaturesAndBundlesMojo works as expected:

Command: mvn --non-recursive org.eclipse.tycho.extras:tycho-p2-extras-plugin:3.0.1:publish-features-and-bundles

POM fails:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>my.group</groupId>
  <artifactId>my.artifact</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
  <build>
      <plugin>
        <groupId>org.eclipse.tycho</groupId>
        <artifactId>tycho-maven-plugin</artifactId>
        <version>3.0.1</version>
        <extensions>true</extensions>
      </plugin>
      <plugin>
        <groupId>org.eclipse.tycho.extras</groupId>
        <artifactId>tycho-p2-extras-plugin</artifactId>
        <version>3.0.1</version>
        <inherited>false</inherited>
        <configuration>
          <append>true</append>
          <compress>true</compress>
          <publishArtifacts>true</publishArtifacts>
        </configuration>
      </plugin>

<!-- other build stuff -->

  <modules>
    <!-- some modules of "eclipse-pugin", "eclipse-feature" and "eclipse-target-definition" -->
  </modules>
</project>

POM works:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>my.group</groupId>
  <artifactId>my.artifact</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
  <build>
      <plugin>
        <groupId>org.eclipse.tycho.extras</groupId>
        <artifactId>tycho-p2-extras-plugin</artifactId>
        <version>3.0.1</version>
        <inherited>false</inherited>
        <configuration>
          <append>true</append>
          <compress>true</compress>
          <publishArtifacts>true</publishArtifacts>
        </configuration>
      </plugin>

<!-- other build stuff -->

  <modules>
    <!-- some modules of "eclipse-pugin", "eclipse-feature" and "eclipse-target-definition" -->
  </modules>
</project>

But I now need <extensions>true</extensions> in all the child POMs

[laeubi]

the PublishFeaturesAndBundlesMojo works as expected

Can you explain what you expect it to do for a pom project?

[chrislake]

@laeubi ,

The POM is just used for configuration so I don't have to have -Dxxx=yyy on the command line. Therefore I could use an entirely separate POM from the main build POM to do this one step.

As to what I expect though, I have a directory structure with:

root
|-- target
    |-- source
        |-- features
            |-- my.feature_1.0.0.jar
        |-- plugins
            |-- my.plugin.1_1.0.0.jar
            |-- my.plugin.2_1.0.0.jar
            |-- my.plugin.2_1.0.0.jar
-- pom.xml

Upon executing the publish-features-and-bundles goal, I then get a root/target/repository p2 repository complete with artifacts.jar and contents.jar which I then upload in it's entirety to my server for use.

[laeubi]

I have now created a minimal demo project and it works as expsected:

https://github.com/eclipse-tycho/tycho/tree/master/demo/publish-p2

[laeubi]

I can reproduce the error when using the example and additionally enable the tycho-maven-plugin, so maven has some classlaoding issues then, but as the tycho-maven-plugin is not required when using publish-features-and-bundles, so the easiest soloution seems to not enable it together.

[laeubi]

There should be a fix in approx 1 hr when this build has completed:

• 3.0.3-SNAPSHOT: https://ci.eclipse.org/tycho/job/tycho-github/job/tycho-3.0.x/15/
• 4.0.0-SNAPSHOT: https://ci.eclipse.org/tycho/job/tycho-github/job/master/122/

Please try out the current tycho snapshot build then and report if you are still seeing issues.