return packagedArtifactFile;
            }
        }

        if (!hasBeenPackagedDuringThisSession(project)) {
            // fallback to loose class files only if artifacts haven't been packaged yet
            // and only for plain old jars. Not war files, not ear files, not anything else.
            return determineBuildOutputDirectoryForArtifact(project, artifact);
        }

        plugin.setArtifactId( "maven-surefire-plugin" );
        plugin.setVersion( "2.4.2" );

        // The project has already been fully interpolated so getting the raw mojoDescriptor is not going to have the processes configuration.
        MojoDescriptor mojoDescriptor = pluginManager.getMojoDescriptor( plugin, goal, session.getLocalRepository(), session.getCurrentProject().getPluginArtifactRepositories() );

            pomArtifact = rel.pomArtifact;

            relocatedArtifact = rel.relocatedArtifact;

            if (rel.project == null) {
                // When this happens we have a Maven 1.x POM, or some invalid POM.
                // It should have never found its way into Maven 2.x repository but it did.
                dependencies = Collections.emptyList();
            } else {

     * Whether module hierarchy was detected. If false, then package hierarchy is assumed.
     * In a package hierarchy, the {@linkplain #descriptors} map has either zero or one entry.
     * In a module hierarchy, the descriptors map may have an arbitrary number of entries,
     * including one (so the map size cannot be used as a criterion).
     *
     * @see #isModuleHierarchy()
     */
    private final boolean isModuleHierarchy;

    /**

- plugin execution error due to something that is not expected to go wrong (the compiler executable missing)
- asking to use a plugin for which you do not have a version defined - tools to easily select versions
- goal not found in a plugin (probably could list the ones that are)

 */

// PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,

                            "Error evaluating plugin parameter expression: " + expression, e);
                }
            }
        }

        /*
         * MNG-4312: We neither have reserved all of the above magic expressions nor is their set fixed/well-known (it
         * gets occasionally extended by newer Maven versions). This imposes the risk for existing plugins to

        // it refers to a snapshot artifact or meta-version.
        // NOTE: Release metadata includes version information about artifacts that have been released, to allow
        // meta-versions like RELEASE and LATEST to resolve, and also to allow retrieval of the range of valid, released
        // artifacts available.

        MavenSession session = createMavenSession(pom, eps);
        MavenProject project = session.getCurrentProject();

        // Here we will actually not have any artifacts because the ProjectDependenciesResolver is not involved here. So
        // right now it's not valid to ask for artifacts unless plugins require the artifacts.

        project.getCompileClasspathElements();
    }

         * This must not be confused with {@link #root(DependencyCoordinate)}: The root dependency, like any
         * other specified dependency, will be subject to dependency collection/resolution, i.e. should have an artifact
         * descriptor and a corresponding artifact file. The root artifact on the other hand is only used

     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been
     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @param userProperties The user properties, may be {@code null}.