ByteStreams.copy(inChannel, outChannel);
    assertThat(out.toByteArray()).isEqualTo(expected);
  }


  public void testCopyFileChannel() throws IOException {
    int chunkSize = 14407; // Random prime, unlikely to match any internal chunk size
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();

	ok = true
	ctxt.DiagFunc = func(format string, args ...any) {
		t.Errorf(format, args...)
		ok = false
	}
	obj.Flushplist(ctxt, pList, nil)

	if !ok {
		// If we've encountered errors, the output is unlikely to be sane.
		t.FailNow()
	}

	for p := top; p != nil; p = p.Link {
		if p.As == obj.ATEXT {
			text = p.From.Sym
		}
		hexes := hexByLine[p.Line()]
		if hexes == "" {
			continue
		}

            Thread.yield();
          }
        } finally {
          executor.shutdownNow();
        }

        switcher.get(); // to check for (extremely unlikely) exceptions
      }
    }
  }

  public void testDeleteRecursively_nonDirectoryFile() throws IOException {
    try (FileSystem fs = newTestFileSystem(SECURE_DIRECTORY_STREAM)) {

          if (nanos == expirationNanos) { // recheck for lost race
            T t = delegate.get();
            value = t;
            nanos = now + durationNanos;
            // In the very unlikely event that nanos is 0, set it to 1;
            // no one will notice 1 ns of tardiness.
            expirationNanos = (nanos == 0) ? 1 : nanos;
            return t;
          }
        }
      }

}

func (b metacacheBlock) headerKV() map[string]string {
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	v, err := json.Marshal(b)
	if err != nil {
		bugLogIf(context.Background(), err) // Unlikely
		return nil
	}
	return map[string]string{fmt.Sprintf("%s-metacache-part-%d", ReservedMetadataPrefixLower, b.n): string(v)}
}

// pastPrefix returns true if the given prefix is before start of the block.

)

var gzipHandler = func() func(http.Handler) http.HandlerFunc {
	gz, err := gzhttp.NewWrapper(gzhttp.MinSize(1000), gzhttp.CompressionLevel(gzip.BestSpeed))
	if err != nil {
		// Static params, so this is very unlikely.
		logger.Fatal(err, "Unable to initialize server")
	}
	return gz
}()

// Set of handler options as bit flags
type hFlag uint8

const (
	// this flag disables gzip compression of responses

    ByteStreams.copy(inChannel, outChannel);
    assertThat(out.toByteArray()).isEqualTo(expected);
  }


  public void testCopyFileChannel() throws IOException {
    int chunkSize = 14407; // Random prime, unlikely to match any internal chunk size
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();

        ImmutableSet.of(
            "2001:db8::5efe:102:304",
            "2001:db8::100:5efe:102:304", // Private Multicast? Not likely.
            "2001:db8::200:5efe:102:304",
            "2001:db8::300:5efe:102:304" // Public Multicast? Also unlikely.
            );
    ImmutableSet<String> nonIsatapAddresses =
        ImmutableSet.of(
            "::1.2.3.4",
            "3ffe::1",

            Thread.yield();
          }
        } finally {
          executor.shutdownNow();
        }

        switcher.get(); // to check for (extremely unlikely) exceptions
      }
    }
  }

  public void testDeleteRecursively_nonDirectoryFile() throws IOException {
    try (FileSystem fs = newTestFileSystem(SECURE_DIRECTORY_STREAM)) {

   * or even that an interrupt occurred (if the spurious wakeup happens before the interrupt).
   *
   * Fundamentally, there's not really anything we can do about that. In the unlikely event that it
   * comes up in practice (maybe through some kind of sanitizer-like testing that intentionally
   * inflicts spurious interrupts on us?), we might have to accept some flakiness or disable some