* throwing exceptions like {@link NoSuchElementException} at the appropriate times, it throws
   * {@link PermittedMetaException} instances, which wrap a set of all exceptions that the iterator
   * could throw during the invocation of that method. This is necessary because, e.g., a call to
   * {@code iterator().remove()} of an unmodifiable list could throw either {@link

    // Setup
    File file = createTempFile();
    Files.write(bytes, file);

    // Test
    MappedByteBuffer actual = Files.map(file);

    // Verify
    ByteBuffer expected = ByteBuffer.wrap(bytes);
    assertTrue("ByteBuffers should be equal.", expected.equals(actual));
  }

  public void testMap_noSuchFile() throws IOException {
    // Setup
    File file = createTempFile();

 *       value was available
 *   <li>To distinguish between "unknown" (for example, not present in a map) and "known to have no
 *       value" (present in the map, with value {@code Optional.absent()})
 *   <li>To wrap nullable references for storage in a collection that does not support {@code null}
 *       (though there are <a
 *       href="https://github.com/google/guava/wiki/LivingWithNullHostileCollections">several other

      addressAsLong = getEmbeddedIPv4ClientAddress(ip6).hashCode();
    } else {
      // Just extract the high 64 bits (assuming the rest is user-modifiable).
      addressAsLong = ByteBuffer.wrap(ip6.getAddress(), 0, 8).getLong();
    }

    // Many strategies for hashing are possible. This might suffice for now.
    int coercedHash = Hashing.murmur3_32_fixed().hashLong(addressAsLong).asInt();

                treeConnect(null, null);
            }
            catch ( SmbException e ) {
                throw e;
            }
            catch ( CIFSException e ) {
                throw SmbException.wrap(e);
            }
        }
        else {
            Trans2FindFirst2 req = new Trans2FindFirst2(
                tf.getConfig(),
                "\\",
                "*",

    if (TF_GetCode(status) != TF_OK) return;
  }
  std::vector<TFE_TensorHandle*> unwrapped_results(expected_max_outputs);
  int real_num_outputs = expected_max_outputs;
  TFE_OpSetCancellationManager(op_.get(), wrap(cancellation_manager_), status);
  if (TF_GetCode(status) != TF_OK) return;

  // unwrap op_ and set step_id only if valid step id value was set.
  // Currently only required for non-TFRT use cases, e.g., EagerOp.

	// and the Metrics API handler returns a 500 HTTP status code. This should
	// normally not happen, and usually indicates a bug.
	logger.CriticalIf(GlobalContext, errors.Wrap(err, "failed to get metrics"))

	promMetrics := metricValues.ToPromMetrics(mg.CollectorPath.metricPrefix(),
		mg.ExtraLabels)
	for _, metric := range promMetrics {
		ch <- metric
	}
}

   *
   * If the hint is unknown [chooser] should return null which will cause the value to be decoded as
   * an opaque byte string.
   *
   * This may optionally wrap the contents in a tag.
   */
  fun usingTypeHint(chooser: (Any?) -> DerAdapter<*>?): DerAdapter<Any?> {
    return object : DerAdapter<Any?> {
      override fun matches(header: DerHeader): Boolean = true

    assertTrue(type.isPrimitive());
    assertNotWrapper(type);
    assertEquals(TypeToken.of(Primitives.wrap((Class<?>) type.getType())), type.wrap());
  }

  private static void assertNotPrimitive(TypeToken<?> type) {
    assertFalse(type.isPrimitive());
    assertSame(type, type.wrap());
  }

  private static void assertIsWrapper(TypeToken<?> type) {
    assertNotPrimitive(type);

/** Benchmarks for {@link ExecutionList}. */
@VmOptions({"-Xms8g", "-Xmx8g"})
public class ExecutionListBenchmark {
  private static final int NUM_THREADS = 10; // make a param?

  // simple interface to wrap our two implementations.
  interface ExecutionListWrapper {
    void add(Runnable runnable, Executor executor);

    void execute();
    /** Returns the underlying implementation, useful for the Footprint benchmark. */