Iterator<Entry<E>> entryIterator = entryIterator();
    if (entryIterator.hasNext()) {
      Entry<E> result = entryIterator.next();
      result = Multisets.immutableEntry(result.getElement(), result.getCount());
      entryIterator.remove();
      return result;
    }
    return null;
  }

  @Override
  public @Nullable Entry<E> pollLastEntry() {

                        // explicitly exclude. Set result and stop processing.
                        result = false;
                        break;
                    }
                }
                // check for exact match
                else if (repo.equals(originalId)) {
                    result = true;
                    break;
                }

    result = hash128to64(result + v, u);
    return result == 0 || result == 1 ? result + ~1 : result;
  }

  private static long shiftMix(long val) {
    return val ^ (val >>> 47);
  }

  /** Implementation of Hash128to64 from util/hash/hash128to64.h */
  @VisibleForTesting
  static long hash128to64(long high, long low) {
    long a = (low ^ high) * K3;
    a ^= a >>> 47;

        nodeStatusRequest = new NodeStatusRequest(mockConfig, mockName);

        // Act
        String result = nodeStatusRequest.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.startsWith("NodeStatusRequest["));
        assertTrue(result.endsWith("]"));
        assertTrue(result.contains("NodeStatusRequest"));
    }

    @Test
    void toString_shouldIncludeParentToString() {

        // Act
        String result = transPeekNamedPipe.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.contains("TransPeekNamedPipe"));
        if (pipeName != null) {
            assertTrue(result.contains("pipeName=" + pipeName));
        } else {
            assertTrue(result.contains("pipeName=null"));
        }
    }

    @Test

    this.inverse = inverse;
  }

  @Override
  public ImmutableBiMap<V, K> inverse() {
    ImmutableBiMap<V, K> result = inverse;
    if (result == null) {
      return inverse = new SingletonImmutableBiMap<V, K>(singleValue, singleKey, this);
    } else {
      return result;
    }
  }

  @Override
  public ImmutableSet<V> values() {
    return ImmutableSet.of(singleValue);
  }

  @Override
  public SortedMultiset<E> descendingMultiset() {
    UnmodifiableSortedMultiset<E> result = descendingMultiset;
    if (result == null) {
      result = new UnmodifiableSortedMultiset<>(delegate().descendingMultiset());
      result.descendingMultiset = this;
      return descendingMultiset = result;
    }
    return result;
  }

  @Override
  public @Nullable Entry<E> firstEntry() {

        };
    addCallback(future, callback, directExecutor());
    future.set(result);
    assertEquals(result, future.get());
    assertThat(successCalls[0]).isEqualTo(1);
    assertThat(failureCalls[0]).isEqualTo(0);
  }

  public void testOnSuccessThrowsError() throws Exception {
    SomeError error = new SomeError();
    String result = "result";
    SettableFuture<String> future = SettableFuture.create();

        int result = response.writeDataWireFormat(dst, 0);
        assertEquals(0, result);
    }

    @Test
    void testReadSetupWireFormat() {
        byte[] buffer = new byte[100];
        int result = response.readSetupWireFormat(buffer, 0, 100);
        assertEquals(0, result);
    }

    @Test
    void testReadParametersWireFormat() {
        byte[] buffer = new byte[100];

    protected boolean set(@Nullable V value) {
      boolean result = sync.set(value);
      if (result) {
        executionList.execute();
      }
      return result;
    }

    /**
     * Subclasses should invoke this method to set the result of the computation to an error, {@code
     * throwable}. This will set the state of the future to {@link OldAbstractFuture.Sync#COMPLETED}