copy.setRemoteRepositories(original.getRemoteRepositories());
        copy.setPluginArtifactRepositories(original.getPluginArtifactRepositories());
        copy.setRepositoryCache(original.getRepositoryCache());
        copy.setWorkspaceReader(original.getWorkspaceReader());
        copy.setNoSnapshotUpdates(original.isNoSnapshotUpdates());

    protected void prepare(C context) throws Exception {
        // explicitly fill in "defaults"?
        DefaultMavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
        mavenExecutionRequest.setRepositoryCache(new DefaultRepositoryCache());
        mavenExecutionRequest.setInteractiveMode(true);
        mavenExecutionRequest.setCacheTransferError(false);
        mavenExecutionRequest.setIgnoreInvalidArtifactDescriptor(true);

    MavenExecutionRequest setPluginArtifactRepositories(List<ArtifactRepository> repositories);

    List<ArtifactRepository> getPluginArtifactRepositories();

    MavenExecutionRequest setRepositoryCache(RepositoryCache repositoryCache);

    RepositoryCache getRepositoryCache();

    WorkspaceReader getWorkspaceReader();

    MavenExecutionRequest setWorkspaceReader(WorkspaceReader workspaceReader);

        MavenExecutionRequest request = executionRequestPopulator.populateDefaults(cliRequest.request);

        if (cliRequest.request.getRepositoryCache() == null) {
            cliRequest.request.setRepositoryCache(new DefaultRepositoryCache());
        }

        eventSpyDispatcher.onEvent(request);

        MavenExecutionResult result = maven.execute(request);

        eventSpyDispatcher.onEvent(result);