Objects.requireNonNull(output, "output cannot be null");
        Objects.requireNonNull(model, "model cannot be null");

        String encoding = model.getModelEncoding();
        if (encoding == null || encoding.isEmpty()) {
            encoding = "UTF-8";
        }

        try (Writer out = new OutputStreamWriter(output, encoding)) {
            write(out, options, model);

            throws GraphConflictResolutionException {
        if (policy == null) {
            throw new GraphConflictResolutionException("no GraphConflictResolutionPolicy injected");
        }

        if (graph == null) {
            return null;
        }

        final MetadataGraphVertex entry = graph.getEntry();
        if (entry == null) {
            return null;
        }

        if (graph.isEmpty()) {

    @Override
    public boolean isAvailable() {
        if (available != null) {
            return available;
        }
        if (generatorList != null && !generatorList.isEmpty()) {
            String path = System.getenv("PATH");
            if (path == null) {
                path = System.getenv("Path");
            }
            if (path == null) {
                path = System.getenv("path");
            }

     * @return 削除されたエントリ。キーに対応するエントリがなかった場合は{@literal null}
     */
    protected Entry<K, V> removeMap(final Object key) {
        int hashCode = 0;
        int index = 0;

        if (key != null) {
            hashCode = key.hashCode();
            index = (hashCode & 0x7FFFFFFF) % mapTable.length;
            for (Entry<K, V> e = mapTable[index], prev = null; e != null; prev = e, e = e.next) {

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}

      creationTimestamp: null
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
      - image: fake.docker.io/google-samples/hello-go-gke:1.0
        name: hello
        ports:
        - containerPort: 80
          name: http
        resources: {}

        super(
            domain != null ? domain : tc.getConfig().getDefaultDomain(),
            username != null ? username : ( tc.getConfig().getDefaultUsername() != null ? tc.getConfig().getDefaultUsername() : "GUEST" ),
            password != null ? password : ( tc.getConfig().getDefaultPassword() != null ? tc.getConfig().getDefaultPassword() : "" ),
            (AuthenticationType) null);
        this.context = tc;
    }

    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }

        final String password = getPassword(params);
        try (PDDocument document = PDDocument.load(in, password == null ? null : password)) {
            final StringWriter writer = new StringWriter();

      when (val protocol = sslSocket.applicationProtocol) {
        null, "" -> null
        else -> protocol
      }
    } catch (e: UnsupportedOperationException) {
      // https://docs.oracle.com/javase/9/docs/api/javax/net/ssl/SSLSocket.html#getApplicationProtocol--
      null
    }
  }

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? {

            if (t instanceof AbstractMojoExecutionException) {
                longMessage = ((AbstractMojoExecutionException) t).getLongMessage();
            } else if (t instanceof MojoException) {
                longMessage = ((MojoException) t).getLongMessage();
            }

            if (longMessage != null && !longMessage.isEmpty()) {