org.eclipse.aether.version.VersionRange.Bound bound = delegate.getUpperBound();
            if (bound == null) {
                return null;
            }
            return new Boundary() {
                @Override
                public Version getVersion() {
                    return new DefaultVersion(versionScheme, bound.getVersion());
                }

                @Override

     *   <li><b>Package hierarchy:</b> if a {@code module-info.class} file is found at the root,
     *       then builds a singleton map with the module name declared in that descriptor.</li>
     *   <li><b>Module hierarchy:</b> if {@code module-info.class} files are found in sub-directories,
     *       at a deep intentionally restricted to one level, then builds a map of module names found
     *       in the descriptor of each sub-directory.</li>
     * </ul>

                "Expected 'UnresolvableModelException' not thrown.");
        assertEquals("The requested parent version range '[1,)' does not specify an upper bound", e.getMessage());
    }

    @Test
    void testResolveParentSuccessfullyResolvesExistingParentWithoutRange() throws Exception {
        final Parent parent = new Parent();
        parent.setGroupId("org.apache");

 *
 * @since 4.0.0
 */
public interface ModelSource extends Source {

    interface ModelLocator {
        /**
         * Returns the file containing the pom or null if a pom can not be
         * found at the given file or in the given directory.
         *
         * @since 4.0.0
         */
        @Nullable
        Path locateExistingPom(@Nonnull Path project);
    }

    @Nullable

            return determineBuildOutputDirectoryForArtifact(project, artifact);
        }

        // The fall-through indicates that the artifact cannot be found;
        // for instance if package produced nothing or classifier problems.
        return null;
    }

    private File determineBuildOutputDirectoryForArtifact(final MavenProject project, final Artifact artifact) {

     *
     * @param requestedPhase the requested phase
     *                       The execution plan item
     * @return The ExecutionPlanItem or null if none can be found
     */
    public ExecutionPlanItem findLastInPhase(String requestedPhase) {
        return lastMojoExecutionForAllPhases.get(requestedPhase);
    }

    private List<ExecutionPlanItem> getExecutionPlanItems() {

        if (executionIdx > 0) {
            goal = goal.substring(0, executionIdx);
        }

        injectPluginDeclarationFromProject(plugin, project);

        // If there is no version to be found then we need to look in the repository metadata for
        // this plugin and see what's specified as the latest release.
        //
        if (plugin.getVersion() == null) {

    Path getTopDirectory();

    /**
     * Gets the root directory of the session, which is the root directory for the top directory project.
     *
     * @throws IllegalStateException if the root directory could not be found
     * @see #getTopDirectory()
     * @see Project#getRootDirectory()
     */
    @Nonnull
    Path getRootDirectory();

    @Nonnull
    List<Project> getProjects();

    /**

                }
            }

            if (pluginDescriptor == null) {
                throw new IOException("No plugin descriptor found at " + getPluginDescriptorLocation());
            }
        } catch (IOException e) {
            throw new PluginDescriptorParsingException(plugin, pluginFile.getAbsolutePath(), e);
        }

          <required>false</required>
          <description>Default plugin information to be made available for reference by projects
            derived from this one. This plugin configuration will not be resolved or bound to the
            lifecycle unless referenced. Any local configuration for a given plugin will override
            the plugin's entire definition here.</description>
          <association>