.build()
      assertThat(rewrittenResponse.body.string()).isEqualTo("Hello")
      assertThat(rewrittenResponse.trailers()).isEqualTo(headersOf("t1", "v1"))
    }
  }

  /**
   * We had a bug where a custom `ResponseBody` interacted poorly with `Response.trailers()`.
   * Confirm custom trailers can be read without even accessing the response body.
   */
  @Test
  fun customTrailersDoNotUseResponseBody() {

   * inputs, regardless of how the elements are divided.
   */
  @SafeVarargs
  @CanIgnoreReturnValue
  @SuppressWarnings("nullness") // TODO(cpovirk): Remove after we fix whatever the bug is.
  public final CollectorTester<T, A, R> expectCollects(R expectedResult, T... inputs) {
    List<T> list = Arrays.asList(inputs);
    doExpectCollects(expectedResult, list);

    if (!elements.hasNext()) {
      return of();
    }
    E first = elements.next();
    if (!elements.hasNext()) {
      // TODO: Remove "ImmutableSet.<E>" when eclipse bug is fixed.
      return ImmutableSet.<E>of(first);
    }

    Set<E> delegate = Sets.newLinkedHashSet();
    delegate.add(checkNotNull(first));
    do {
      delegate.add(checkNotNull(elements.next()));

      cp >>>= 4;
      dest[4] = upperHexDigits[0x8 | (cp & 0x3)];
      cp >>>= 2;
      dest[2] = upperHexDigits[cp & 0x7];
      return dest;
    } else {
      // If this ever happens it is due to bug in UnicodeEscaper, not bad input.
      throw new IllegalArgumentException("Invalid unicode character value " + cp);
    }
  }

    // This is somewhat annoying, but turns out to be very fast in practice. Alternatively, we could
    // drop the contract on the method that enforces this queue like behavior since depending on it
    // is likely to be a bug anyway.

    // N.B. All writes to the list and the next pointers must have happened before the above
    // synchronized block, so we can iterate the list without the lock held here.

            // Test parent of a server
            assertEquals("smb1://", new SmbFile("smb1://server/").getParent());
            // Test parent of root - currently throws NPE due to bug in SmbFile.getParent()
            // when authority is null. This is a known issue in the legacy implementation.
            // For now, we expect the NPE to maintain backward compatibility

    }

    @Test
    public void testUncPathNotAllowed() throws Exception {
        PathValidator noUncValidator = new PathValidator(260, 255, false, false);
        // Due to normalization bug, UNC paths are not properly detected
        // The normalization removes all duplicate backslashes, so \\\\server becomes \server
        // This test validates that paths which should be UNC but aren't detected due to normalization

    // backward map ordered by country (even for currency values)
    assertThat(bimap.inverse().values()).containsExactly(Currency.DOLLAR, Currency.PESO).inOrder();
  }

  public void testEntrySet() {
    // Bug 3168290
    Map<Currency, Country> map =
        ImmutableMap.of(
            Currency.DOLLAR, Country.CANADA,
            Currency.PESO, Country.CHILE,
            Currency.FRANC, Country.SWITZERLAND);

    assertThat(newArray).isEqualTo(new byte[] {(byte) 0, (byte) 1, (byte) 2});
    newArray[1] = (byte) 5;
    assertThat((byte) list.get(1)).isEqualTo((byte) 1);
  }

  // This test stems from a real bug found by andrewk
  public void testAsList_subList_toArray_roundTrip() {
    byte[] array = {(byte) 0, (byte) 1, (byte) 2, (byte) 3};
    List<Byte> list = Bytes.asList(array);

            return hashBytes(input.toString().getBytes(charset));
          }
          i++;
          buffer |= codePointToFourUtf8Bytes(codePoint) << shift;
          if (supplementaryPlaneFix) { // bug compatibility: earlier versions did not have this add
            shift += 32;
          }
          len += 4;
        }

        if (shift >= 32) {
          int k1 = mixK1((int) buffer);