* exception is thrown, this exception is used as the result of the output {@code Future}.
   *
   * <p>Usage example:
   *
   * {@snippet :
   * // Falling back to a zero counter in case an exception happens when processing the RPC to fetch
   * // counters.
   * ListenableFuture<Integer> faultTolerantFuture =
   *     fetchCounters().catching(FetchException.class, x -> 0, directExecutor());
   * }
   *

    return response;
  }
}
```

A call to `chain.proceed(request)` is a critical part of each interceptor’s implementation. This simple-looking method is where all the HTTP work happens, producing a response to satisfy the request. If `chain.proceed(request)` is being called more than once previous response bodies must be closed.

      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);
    }
  }

  private interface ChainingCalls {
    // A method that is defined to 'return this'
    @CanIgnoreReturnValue
    ChainingCalls chainingCall();

    // A method that just happens to return a ChainingCalls object
    ChainingCalls nonChainingCall();
  }

  private static class ForwardingChainingCalls implements ChainingCalls {
    final ChainingCalls delegate;

		labels := make([]string, 0, len(metric.VariableLabels)*2)
		for k, v := range metric.VariableLabels {
			if newLabel, ok := renameLabels[k]; ok {
				labels = append(labels, newLabel, v)
			} else {
				labels = append(labels, k, v)
			}
		}
		labels = append(labels, extraLabels...)
		// If valid non zero value set the metrics
		if metric.Value > 0 {
			m.Set(name, metric.Value, labels...)
		}
	}
}

    Function<? super Integer, Y> g = SerializableTester.reserializeAndAssert(f);
    for (int i = 1; i < 5; i++) {
      // convoluted way to check that the same result happens from each
      Y expected = null;
      try {
        expected = f.apply(i);
      } catch (IllegalArgumentException e) {
        try {
          g.apply(i);
          fail();

  }

  /**
   * Returns true if this connection's route has the same address as any of [candidates]. This
   * requires us to have a DNS address for both hosts, which only happens after route planning. We
   * can't coalesce connections that use a proxy, since proxies don't tell us the origin server's IP
   * address.
   */
  private fun routeMatchesAny(candidates: List<Route>): Boolean =

  private interface ChainingCalls {
    // A method that is defined to 'return this'
    @CanIgnoreReturnValue
    ChainingCalls chainingCall();

    // A method that just happens to return a ChainingCalls object
    ChainingCalls nonChainingCall();
  }

  private static class ForwardingChainingCalls implements ChainingCalls {
    final ChainingCalls delegate;

     *
     * @return the error stream, or null if not set
     */
    @Nullable
    OutputStream stdErr();

    /**
     * Returns {@code true} if this call happens in "embedded" mode, for example by another application that
     * embeds Maven. When running in "embedded" mode, Maven will not try to grab system terminal and will use

	if gerr != nil { // error from GetObjectInfo
		if _, ok := gerr.(MethodNotAllowed); ok {
			// This happens usually for a delete marker
			if oi.DeleteMarker || !oi.VersionPurgeStatus.Empty() {
				// Delete marker should be present and valid.
				return nil
			}
		}