*/
    public static String getMemoryUsageLog() {
        final Runtime runtime = Runtime.getRuntime();
        final long freeBytes = runtime.freeMemory();
        final long maxBytes = runtime.maxMemory();
        final long totalBytes = runtime.totalMemory();
        final long usedBytes = totalBytes - freeBytes;

   * instead.
   *
   * @since 14.0
   */
  public static UnsignedLong fromLongBits(long bits) {
    // TODO(lowasser): consider caching small values, like Long.valueOf
    return new UnsignedLong(bits);
  }

  /**
   * Returns an {@code UnsignedLong} representing the same value as the specified {@code long}.
   *

    public long getBytesTransferred() {
        return bytesTransferred.get();
    }

    /**
     * Get total number of operation errors
     *
     * @return error count
     */
    public long getOperationErrors() {
        return operationErrors.get();
    }

    /**
     * Get total number of connections created
     *
     * @return connection count
     */

  private static final int ARRAY_MASK = 0x0ffff;
  private static final Random randomSource = new Random(314159265358979L);
  private static final long[] longs = new long[ARRAY_SIZE];
  private static final long[] divisors = new long[ARRAY_SIZE];
  private static final String[] decimalStrings = new String[ARRAY_SIZE];
  private static final String[] binaryStrings = new String[ARRAY_SIZE];

  }

  data class ConnectionClosed(
    override val timestampNs: Long,
    override val connection: Connection,
  ) : ConnectionEvent()

  data class ConnectionAcquired(
    override val timestampNs: Long,
    override val connection: Connection,
    val call: Call,
  ) : ConnectionEvent()

  data class ConnectionReleased(
    override val timestampNs: Long,
    override val connection: Connection,
    val call: Call,

    // was some asymmetry so that the initial v0 and v1 differ from v2 and v3.
    private long v0 = 0x736f6d6570736575L;
    private long v1 = 0x646f72616e646f6dL;
    private long v2 = 0x6c7967656e657261L;
    private long v3 = 0x7465646279746573L;

    // The number of bytes in the input.
    private long b = 0;

    // The final 64-bit chunk includes the last 0 through 7 bytes of m followed by null bytes

public class WitnessHeartbeatMessage extends WitnessRpcMessage {

    // Input parameters for WitnessHeartbeat
    private byte[] contextHandle;
    private long sequenceNumber;

    // Output parameters for WitnessHeartbeat
    private long responseSequenceNumber;
    private long heartbeatInterval;

    /**
     * Creates a new WitnessHeartbeat RPC message.
     */
    public WitnessHeartbeatMessage() {

      }
      return bufferedSource;
    }

    private Source source(Source source) {
      return new ForwardingSource(source) {
        long totalBytesRead = 0L;

        @Override public long read(Buffer sink, long byteCount) throws IOException {
          long bytesRead = super.read(sink, byteCount);
          // read() returns the number of bytes read, or -1 if this source is exhausted.

      @Override
      public long getLongLittleEndian(byte[] array, int offset) {
        long bigEndian = theUnsafe.getLong(array, (long) offset + BYTE_ARRAY_BASE_OFFSET);
        // The hardware is big-endian, so we need to reverse the order of the bytes.
        return Long.reverseBytes(bigEndian);
      }

      @Override
      public void putLongLittleEndian(byte[] array, int offset, long value) {

  // Double#doubleToRawLongBits(double)} spec.
  static final long SIGNIFICAND_MASK = 0x000fffffffffffffL;

  // The mask for the exponent, according to the {@link
  // Double#doubleToRawLongBits(double)} spec.
  static final long EXPONENT_MASK = 0x7ff0000000000000L;

  // The mask for the sign, according to the {@link
  // Double#doubleToRawLongBits(double)} spec.
  static final long SIGN_MASK = 0x8000000000000000L;