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I got this working by passing passing a classloader (this.getClass().getClassLoader()) to a DefaultContainerConfiguration and passing my DefaultContainerConfiguration to a DefaultPlexusContainer. Using the plexus, I was able to load instantiate a MavenExecutionRequestPopulator and a Maven object.

Then when I try to execute any goals, I create a MavenExecutionRequest and set the Pom file, system and user properties. The system properties are obtained from the System and have my -Dfoo=x properties, etc.

After that, I use a method I shamelessly stole (cant remember from where), but adapted a little ...

public MavenExecutionResult execute(MavenExecutionRequest request) {
        if (request == null) {
            return null;
        }
        MavenExecutionResult result;
        try {
            populator.populateDefaults(request);
            result = maven.execute(request);
        } catch (MavenExecutionRequestPopulationException ex) {
            ex.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

Let me know if any further details are required. I would post all the code, but it is spread over numerous files. Good luck.

ekawas 2010-07-11 17:41:34

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embedding maven into OSGi application

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