* @param settings The settings' string representation, may be empty or {@code null}.
     */
    public StringSettingsSource(CharSequence settings) {
        this(settings, null);
    }

    /**
     * Creates a new settings source backed by the specified string.
     *
     * @param settings The settings' string representation, may be empty or {@code null}.
     * @param location The location to report for this use, may be {@code null}.

    private static final int BUF_SIZE = 4096;

    /**
     * 指定のエンコーディングでファイルから入力する{@link Reader}を作成します。
     *
     * @param is
     *            入力ストリーム。{@literal null}であってはいけません
     * @param encoding
     *            入力ストリームのエンコーディング。{@literal null}や空文字列であってはいけません
     * @return ファイルかへ出力する{@link Reader}
     */
    public static InputStreamReader create(final InputStream is, final String encoding) {

  public void testCompute_absentToAbsent() {
    assertNull(
        "Map.compute(absent, functionReturningNull) should return null",
        getMap()
            .compute(
                k3(),
                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return null;
                }));
    expectUnchanged();
    assertEquals(getNumElements(), getMap().size());
  }

  public void testCompute_absentToAbsent() {
    assertNull(
        "Map.compute(absent, functionReturningNull) should return null",
        getMap()
            .compute(
                k3(),
                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return null;
                }));
    expectUnchanged();
    assertEquals(getNumElements(), getMap().size());
  }

    // to propagate immediately.
    Exception exception = null;
    for (BaseStream<?, ?> stream : toClose) {
      try {
        stream.close();
      } catch (Exception e) { // sneaky checked exception
        if (exception == null) {
          exception = e;
        } else {
          exception.addSuppressed(e);
        }
      }
    }
    if (exception != null) {

    return try {
      val keyManager =
        newKeyManager(
          null,
          serverCert,
          serverIntermediateCa.certificate,
        )
      val trustManager =
        newTrustManager(
          null,
          Arrays.asList(serverRootCa.certificate, clientRootCa.certificate),
          emptyList(),
        )

     * Retrieve an <code>InetAddress</code>. If the address is not
     * an IP address and cannot be resolved <code>null</code> will
     * be returned.
     */
    public static InetAddress getInetAddress ( Properties props, String key, InetAddress def ) {
        String addr = props.getProperty(key);
        if ( addr != null ) {
            try {
                def = InetAddress.getByName(addr);
            }

    Cell[] as;
    long b, v;
    int[] hc;
    Cell a;
    int n;
    if ((as = cells) != null || !casBase(b = base, b + x)) {
      boolean uncontended = true;
      if ((hc = threadHashCode.get()) == null
          || as == null
          || (n = as.length) < 1
          || (a = as[(n - 1) & hc[0]]) == null
          || !(uncontended = a.cas(v = a.value, v + x))) retryUpdate(x, hc, uncontended);
    }
  }

          return null;
        }
      };

  // Escapes everything except [a-zA-Z0-9]
  private static final UnicodeEscaper SIMPLE_ESCAPER =
      new UnicodeEscaper() {
        @Override
        protected char @Nullable [] escape(int cp) {
          return ('a' <= cp && cp <= 'z') || ('A' <= cp && cp <= 'Z') || ('0' <= cp && cp <= '9')
              ? null

           * can be used with collections that may contain null. This collection is a collection of
           * non-null Entry objects (Entry objects that might contain null values but are not
           * themselves null), so we can treat it as a plain `Object[]`.
           */
          @SuppressWarnings("nullness")
          Object[] result = standardToArray();