*  Fix: Don't re-encode `+` as `%20` in encoded URL query strings. OkHttp
    prefers `%20` when doing its own encoding, but will retain `+` when that is
    provided.
 *  Fix: Enforce that callers call `WebSocket.close()` on IO errors. Error
    handling in WebSockets is significantly improved.
 *  Fix: Don't use SPDY/3 style header concatenation for HTTP/2 request headers.

    if (connectionUser.candidateConnection() != null) {
      check(toClose == null)
      return ReusePlan(candidate)
    }

    // The call's connection was released.
    toClose?.closeQuietly()
    connectionUser.connectionReleased(candidate)
    connectionUser.connectionConnectionReleased(candidate)
    if (toClose != null) {
      connectionUser.connectionConnectionClosed(candidate)

        totalAttemptsBlocked.set(0);
        totalAccountsLocked.set(0);
        totalIpsBlocked.set(0);
        log.info("Rate limiter state reset");
    }

    @Override
    public void close() {
        if (!closed.compareAndSet(false, true)) {
            return;
        }

        cleanupScheduler.shutdownNow();
        try {
            cleanupScheduler.awaitTermination(5, TimeUnit.SECONDS);

     */
    protected ResultSetUtil() {
    }

    /**
     * Closes the result set.
     * <p>
     * If {@link ResultSet#close()} throws an exception, an error message is logged. The exception is not rethrown.
     * </p>
     *
     * @param resultSet
     *            The result set
     */
    public static void close(final ResultSet resultSet) {
        if (resultSet == null) {
            return;

    }

    /**
     * Closes the Zip file.
     * <p>
     * If {@link ZipFile#close()} throws an exception, an error message is logged. The exception is not rethrown.
     * </p>
     *
     * @param zipFile
     *            Zip file. Must not be {@literal null}.
     */
    public static void close(final ZipFile zipFile) {
        assertArgumentNotNull("zipFile", zipFile);

    }
  }

  @Test fun closeReservedSetThrows() {
    data.write("880203ec".decodeHex()) // Close with code 1004
    data.write("880203ed".decodeHex()) // Close with code 1005
    data.write("880203ee".decodeHex()) // Close with code 1006
    for (i in 1015..2999) {
      data.write(("8802" + format("%04X", i)).decodeHex()) // Close with code 'i'
    }
    var count = 0
    while (!data.exhausted()) {

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertTrue(source.wasStreamClosed());
    assertEquals(STRING, writer.toString());
  }

  public void testLines() throws IOException {
    source = new TestCharSource(LINES);

        // Write a frame.
        val length = (end - start).toInt()
        outputStream.write(outBytes, start.toInt(), length)

        // If the last frame was truncated, immediately close the connection.
        if (truncated) {
          socket.close()
        }
      } else {
        // read a frame
        val inFrame = InFrame(i, reader)
        reader.nextFrame(false, inFrame)
        inFrames.add(inFrame)
      }

        return FileUtil.getCanonicalPath(jarFile);
    }

    /**
     * Closes the JAR file.
     * <p>
     * If {@link JarFile#close()} throws an exception, an error message is logged. The exception is not re-thrown.
     * </p>
     *
     * @param jarFile the JAR file (must not be {@literal null})
     */
    public static void close(final JarFile jarFile) {
        assertArgumentNotNull("jarFile", jarFile);

 *
 * ```java
 * client.connectionPool().evictAll();
 * ```
 *
 * If your client has a cache, call [close()][Cache.close]. Note that it is an error to create calls
 * against a cache that is closed, and doing so will cause the call to crash.
 *
 * ```java
 * client.cache().close();
 * ```
 *
 * OkHttp also uses daemon threads for HTTP/2 connections. These will exit automatically if they
 * remain idle.