* return the value but instead throw an exception.
   */
  private var trailers: Headers? = null

  override val isResponseComplete: Boolean
    get() = state == STATE_CLOSED

  override fun createRequestBody(
    request: Request,
    contentLength: Long,
  ): Sink =
    when {
      request.body?.isDuplex() == true -> {
        throw ProtocolException(

            throw uoe();
        }

        @Override
        public boolean add(E e) {
            throw uoe();
        }

        @Override
        public boolean remove(Object o) {
            throw uoe();
        }

        @Override
        public boolean retainAll(Collection<?> c) {
            throw uoe();
        }

        @Override

            case HALF_UP:
              return (x >= 0) ? roundCeilingAsDouble : roundFloorAsDouble;
            default:
              throw new AssertionError("impossible");
          }
        }
    }
    throw new AssertionError("impossible");
  }

  /**
   * Returns the closest representable {@code long} to the absolute value of {@code x}.
   *

    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the {@code RangeSet} unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public void removeAll(RangeSet<C> other) {
    throw new UnsupportedOperationException();
  }

            encodeCallCount++;
            if (throwOnEncode) {
                throw new RuntimeException("Test encode error");
            }
            if (dst == null) {
                throw new IllegalArgumentException("Destination buffer cannot be null");
            }
            if (dstIndex < 0) {
                throw new IllegalArgumentException("Destination index cannot be negative");
            }

      }

      else -> {
        throw ProtocolException("unsupported method: $selectedMethod")
      }
    }
  }

  private fun acceptCommand(
    fromAddress: InetAddress,
    fromSource: BufferedSource,
    fromSink: BufferedSink,
  ) {
    // Read the command.
    val version = fromSource.readByte() and 0xff
    if (version != VERSION_5) throw ProtocolException("unexpected version: $version")

  final UnmodifiableIterator<Cell<R, C, V>> cellIterator() {
    throw new AssertionError("should never be called");
  }

  @Override
  public ImmutableCollection<V> values() {
    return (ImmutableCollection<V>) super.values();
  }

  @Override
  abstract ImmutableCollection<V> createValues();

  @Override
  final Iterator<V> valuesIterator() {
    throw new AssertionError("should never be called");
  }

    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the {@code RangeMap} unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void remove(Range<K> range) {

    @Override
    void visitTypeVariable(TypeVariable<?> t) {
      throw new UnsupportedOperationException();
    }

    @Override
    void visitWildcardType(WildcardType t) {
      throw new UnsupportedOperationException();
    }

    @Override
    void visitParameterizedType(ParameterizedType t) {
      throw new UnsupportedOperationException();
    }

    @Override

                    Thread.currentThread().interrupt();
                    throw new SmbException("Connection retry interrupted", ie);
                } catch (CIFSException retryException) {
                    log.debug("Connection retry also failed", retryException);
                    throw e; // Throw original exception
                }
            }
            throw e;
        }
    }

    /**