ImmutableList.Builder<String> builder = ImmutableList.builder();
    assertThrows(NullPointerException.class, () -> builder.add((String) null));

    assertThrows(NullPointerException.class, () -> builder.add((String[]) null));

    assertThrows(NullPointerException.class, () -> builder.add("a", null, "b"));
  }

  public void testBuilderAddAllHandlesNullsCorrectly() {
    {

     *
     * @return The decrypted server or {@code null}.
     */
    Server getServer();

    /**
     * Gets the decrypted servers.
     *
     * @return The decrypted server, can be empty but never {@code null}.
     */
    List<Server> getServers();

    /**

        if (modelV3 == null || basedir == null) {
            return;
        }
        alignToBaseDirectory(modelV3, basedir.toPath(), request);
    }

    @Override
    public void alignToBaseDirectory(org.apache.maven.model.Model modelV3, Path basedir, ModelBuildingRequest request) {
        if (modelV3 == null || basedir == null) {
            return;
        }

        helper
            .add(SHORT_NAME, "x")
            .add(LONG_NAME, "y")
            .add(SHORT_NAME, null)
            .add(LONG_NAME, null)
            .addValue("z")
            .addValue("")
            .addValue(null)
            .add(SHORT_NAME, Arrays.asList("A"))
            .add(LONG_NAME, Arrays.asList("B"))
            .add(SHORT_NAME, Arrays.asList())

        for (final Map.Entry<String, Map<String, AccessResultImpl<Long>>> entry : sessionMap.entrySet()) {
            if (entry.getValue() != null) {
                final AccessResultImpl<Long> ar = entry.getValue().get(url);
                if (ar != null) {
                    acList.add(ar);
                }
            }
        }
        // TODO order
        return acList;
    }

    @Override
    public File locatePom(File projectDirectory) {
        Path path = locatePom(projectDirectory != null ? projectDirectory.toPath() : null);
        return path != null ? path.toFile() : null;
    }

    @Override
    public Path locatePom(Path projectDirectory) {
        return projectDirectory != null ? projectDirectory : Paths.get(System.getProperty("user.dir"));
    }

    @Deprecated
    @Override

   * was acquired, or null if no connection was acquired. The acquired connection will also be
   * given to [connectionUser] who may (for example) assign it to a [RealCall.connection].
   *
   * This confirms the returned connection is healthy before returning it. If this encounters any
   * unhealthy connections in its search, this will clean them up.
   *

    assertEquals(0, multimap().keys().count(null));
  }

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(ALLOWS_NULL_KEYS)
  public void testKeysWithNullKey() {
    resetContainer(mapEntry((K) null, v0()), mapEntry((K) null, v1()), mapEntry(k1(), v0()));
    Multiset<K> keys = multimap().keys();
    assertEquals(2, keys.count(null));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());

        // Intentionally notNull because Super POM may not contain a modelId
        Objects.requireNonNull(modelId, "modelId cannot null");

        if (activeProfiles != null) {
            this.activePomProfiles.put(modelId, new ArrayList<>(activeProfiles));
        } else {
            this.activePomProfiles.remove(modelId);
        }

        return this;

        existNextPage = false;
        pageSize = getDefaultPageSize();
        currentPageNumber = getDefaultCurrentPageNumber();

        id = null;
        name = null;
        createdBy = null;
        createdTime = null;
        versionNo = null;

    }

    public int getAllRecordCount() {
        return allRecordCount;
    }

    public void setAllRecordCount(final int allRecordCount) {