Preconditions.checkNotNull(task, "task must not be null!");
    Preconditions.checkNotNull(result, "result must not be null!");
    return delegate.submit(task, result);
  }

  @Override
  public ListenableFuture<?> submit(Runnable task) {
    Preconditions.checkNotNull(task, "task must not be null!");
    return delegate.submit(task);
  }

  @Override
  public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)

    Preconditions.checkNotNull(task, "task must not be null!");
    Preconditions.checkNotNull(result, "result must not be null!");
    return delegate.submit(task, result);
  }

  @Override
  public ListenableFuture<?> submit(Runnable task) {
    Preconditions.checkNotNull(task, "task must not be null!");
    return delegate.submit(task);
  }

  @Override
  public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)

    protected final ColumnInfo _columnUrl = cci("url", "url", null, null, String.class, "url", null, false, false, false, "keyword", 0, 0,
            null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnUserInfoId = cci("userInfoId", "userInfoId", null, null, String.class, "userInfoId", null, false,

            false, false, "Long", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnExpiredTime = cci("expiredTime", "expiredTime", null, null, Long.class, "expiredTime", null, false,
            false, false, "Long", 0, 0, null, null, false, null, null, null, null, null, false);

     * ObjectUtil.defaultValue(null, null) = null
     * </pre>
     *
     * @param <T>
     *            オブジェクトの型
     * @param t
     *            オブジェクト(<code>null</code>可)
     * @param defaultValue
     *            引数のオブジェクトが<code>null</code>だったら返すオブジェクト(<code>null</code>可)
     * @return オブジェクトを返します。オブジェクトが<code>null</code>だったら<code>defaultValue</code>
     *         を返します。
     */

        return treeRoot == null ? null : new MetadataGraph(treeRoot);
    }
    // ----------------------------------------------------------------------------
    public MetadataGraph getGraph(ArtifactScopeEnum scope)
            throws MetadataResolutionException, GraphConflictResolutionException {
        if (treeRoot == null) {
            return null;
        }

        if (conflictResolver == null) {

     * @param artifactId The artifact id, may be {@code null}.
     * @param version The version, may be {@code null}.
     * @return The user-friendly artifact id, never {@code null}.
     */
    static String toId(String groupId, String artifactId, String version) {
        StringBuilder buffer = new StringBuilder(128);

                null, null, null))
        .addEqualityGroup(
            Tables.<String, @Nullable Object, @Nullable Object>immutableCell("bar", null, null))
        .addEqualityGroup(
            Tables.<@Nullable Object, Integer, @Nullable Object>immutableCell(null, 2, null))
        .addEqualityGroup(
            Tables.<@Nullable Object, @Nullable Object, Character>immutableCell(null, null, 'b'))

        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;
        this.classifier = (classifier != null && !classifier.isEmpty()) ? classifier : null;
        this.extension = (extension != null && !extension.isEmpty()) ? extension : null;

        assertActivation(false, profile, newContext(null, newProperties("linux", "6.5.0-1014-aws", "amd64")));
        assertActivation(false, profile, newContext(null, newProperties("windows", "1", "aarch64")));
        assertActivation(false, profile, newContext(null, newProperties("windows", "99", "amd64")));
        assertActivation(true, profile, newContext(null, newProperties("windows", "99", "aarch64")));
    }

    @Test