import org.apache.maven.api.annotations.Nullable;

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 * Provides access to the contents of a source independently of the
 * backing store (e.g. file system, database, memory).
 * <p>
 * This is mainly used to parse files into objects such as
 * {@link org.apache.maven.api.Project},
 * {@link org.apache.maven.api.model.Model},
 * {@link org.apache.maven.api.settings.Settings}, or

            }
        } else {
            return doRead(request);
        }
    }

    private Path doLocateExistingPom(Path project) {
        if (project == null) {
            project = Paths.get(System.getProperty("user.dir"));
        }
        if (Files.isDirectory(project)) {
            Path pom = project.resolve("pom.xml");
            return Files.isRegularFile(pom) ? pom : null;

            d.setGroupId(groupId);
            d.setArtifactId(artifactId);
            d.setVersion(version);
            d.setScope(scope);

            if (systemPath != null && scope.equals(Artifact.SCOPE_SYSTEM)) {
                d.setSystemPath(systemPath);
            }

            if (exclusion != null) {
                d.addExclusion(exclusion);
            }

            project.getDependencies().add(d);

       * We uphold that promise here because our callers promise that `elements` will not contain
       * nulls in its first `n` elements.
       */
      System.arraycopy(elements, 0, contents, size, n);
      size += n;
    }

    @CanIgnoreReturnValue
    @Override
    public Builder<E> addAll(Iterable<? extends E> elements) {

    Object[] elements = new Object[paramCount + others.length];
    elements[0] = e1;
    elements[1] = e2;
    elements[2] = e3;
    elements[3] = e4;
    elements[4] = e5;
    elements[5] = e6;
    System.arraycopy(others, 0, elements, paramCount, others.length);
    return construct(elements.length, elements);
  }

  /**
   * Constructs an {@code ImmutableSet} from the first {@code n} elements of the specified array. If

   *       public Double apply(Integer in) {
   *         return Math.sqrt((int) in);
   *       }
   *     };
   * Map<String, Double> transformed = Maps.transformValues(map, sqrt);
   * System.out.println(transformed);
   * }</pre>
   *
   * ... prints {@code {a=2.0, b=3.0}}.
   *
   * <p>Changes in the underlying map are reflected in this view. Conversely, this view supports

    array[3] = e4;
    array[4] = e5;
    array[5] = e6;
    array[6] = e7;
    array[7] = e8;
    array[8] = e9;
    array[9] = e10;
    array[10] = e11;
    array[11] = e12;
    System.arraycopy(others, 0, array, 12, others.length);
    return construct(array);
  }

  /**
   * Returns an immutable list containing the given elements, in order. If {@code elements} is a

        resolutionErrorHandler.throwErrors(request, result);
        assertEquals(2, result.getArtifacts().size());

        //
        // System scoped version which should
        //
        d.setScope(Artifact.SCOPE_SYSTEM);
        File file = new File(getBasedir(), "src/test/repository-system/maven-core-2.1.0.jar");
        assertTrue(file.exists());
        d.setSystemPath(file.getCanonicalPath());

        System.out.println("[ Looking for " + groupId + ":" + artifactId + " ]");
        for (Artifact a : project.getArtifacts()) {
            System.out.println(a.toString());
            if (artifactId.equals(a.getArtifactId()) && a.getGroupId().equals(groupId)) {
                System.out.println("RETURN");
                return a;
            }
        }

        // load everything...
        MavenProject project1 = getProjectWithDependencies(pom1);

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        System.out.println("Project " + project1.getId() + " " + project1);
        Set set = project1.getArtifacts();
        assertNotNull(set, "No artifacts");
        assertTrue(set.size() > 0, "No Artifacts");