======================

You have found a bug or you have an idea for a cool new feature? Contributing
code is a great way to give something back to the open source community. Before
you dig right into the code, there are a few guidelines that we need
contributors to follow so that we can have a chance of keeping on top of
things.

Some of the ideas are documented in the [Maven Wiki][maven-wiki]
which might be interesting to read and for further discussion.

                final List<MetadataGraphEdge> ins = graph.getIncidentEdges(v);
                final MetadataGraphEdge edge = cleanEdges(v, ins, requestedScope);

                if (edge == null) { // no edges - don't need this vertex anymore
                    if (entry.equals(v)) { // unless it's an entry point.
                        // currently processing the entry point - it should not have any entry incident edges

            @Override
            public Object execute(String expression, Object value) {
                if (value != null) {
                    // we're going to parse this back in as XML so we need to escape XML markup
                    value = value.toString()
                            .replace("&", "&")
                            .replace("<", "&lt;")
                            .replace(">", "&gt;");

    return ObjectArrays.toArrayImpl(this, other);
  }

  @Override
  public boolean contains(@Nullable Object object) {
    try {
      // This set never contains null.  We need to explicitly check here
      // because some comparator might throw NPE (e.g. the natural ordering).
      return object != null && sortedDelegate.contains(object);
    } catch (ClassCastException e) {
      return false;

    }

    @Override
    public boolean isUpdateRequired(RepositoryMetadata metadata, ArtifactRepository repository, File file) {
        // Here, we need to determine which policy to use. Release updateInterval will be used when
        // the metadata refers to a release artifact or meta-version, and snapshot updateInterval will be used when

            for (MavenProject project : plan.getAllProjects().keySet()) {
                BuildStep pplan = new BuildStep(PLAN, project, null);
                pplan.status.set(PLANNING); // the plan step always need planning
                BuildStep setup = new BuildStep(SETUP, project, null);
                BuildStep teardown = new BuildStep(TEARDOWN, project, null);
                teardown.executeAfter(setup);

            parameter.setRequired(Boolean.parseBoolean(required));

            PlexusConfiguration editableConfig = d.getChild("editable");

            // we need the null check for pre-build legacy plugins...
            if (editableConfig != null) {
                String editable = d.getChild("editable").getValue();

import java.util.Calendar;
import java.util.Date;

/**
 * Describes a set of policies for a repository to use under certain conditions.
 *
 * @deprecated Avoid use of this type, if you need access to local repository use repository system session instead.
 */
@Deprecated
public class ArtifactRepositoryPolicy {
    public static final String UPDATE_POLICY_NEVER = "never";

 * }
 *
 * public void testMySubtypes() throws Exception {
 *   new MySubtypeTests().testAllDeclarations();
 * }
 * }
 *
 * The calls to {@link #isSubtype} and {@link #notSubtype} tells the framework what assertions need
 * to be made.
 *
 * <p>The declaration methods must be public.
 */
@AndroidIncompatible // only used by android incompatible tests.
@NullUnmarked
abstract class SubtypeTester implements Cloneable {

                  ListFeature.SUPPORTS_SET)
              .createTestSuite());
    }
    return suite;
  }

  // Test generators.  To let the GWT test suite generator access them, they need to be
  // public named classes with a public default constructor.

  public static final class FloatsAsListGenerator extends TestFloatListGenerator {
    @Override
    protected List<Float> create(Float[] elements) {