*/
  ALLOWS_NULL_KEY_QUERIES,
  ALLOWS_NULL_KEYS(ALLOWS_NULL_KEY_QUERIES),
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code
   * containsValue(null)}, {@code values().contains(null)} or {@code values().remove(null)}.
   */
  ALLOWS_NULL_VALUE_QUERIES,
  ALLOWS_NULL_VALUES(ALLOWS_NULL_VALUE_QUERIES),
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code

    from this descriptor. Please report if you find anything wrong.</p>
  ]]></description>
  <defaults>
    <default>
      <key>package</key>
      <value>extension descriptor XML documentation (no java generation)</value><!-- intentionally non-buildable value -->
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="extension">
      <name>ExtensionDescriptor</name>
      <version>1.0.0</version>

			return fi, toStorageErr(err)
		}
		return *resp, nil
	}

	values := make(url.Values)
	values.Set(storageRESTOrigVolume, origvolume)
	values.Set(storageRESTVolume, volume)
	values.Set(storageRESTFilePath, path)
	values.Set(storageRESTVersionID, versionID)
	values.Set(storageRESTInclFreeVersions, strconv.FormatBool(opts.InclFreeVersions))
	values.Set(storageRESTHealing, strconv.FormatBool(opts.Healing))

     * unmarshalled into that type. The preprocessor is not required to perform any type conversion but should rather
     * filter out incompatible values from its result.
     *
     * @param value The configuration value to preprocess, must not be {@code null}.
     * @param type The target type of the value, may be {@code null}.

    Collection<String> values = unmod.values();
    assertThrows(UnsupportedOperationException.class, () -> values.add("4"));
    assertThrows(UnsupportedOperationException.class, () -> values.remove("four"));
    assertThrows(UnsupportedOperationException.class, () -> values.removeAll(singleton("four")));
    assertThrows(UnsupportedOperationException.class, () -> values.retainAll(singleton("four")));
    assertThrows(

        entries.add(mapEntry(k, v));
      }
      Iterable<Entry<K, V>> orderedEntries = multimapGenerator.order(entries);
      List<V> values = new ArrayList<>();
      for (Entry<K, V> entry : orderedEntries) {
        values.add(entry.getValue());
      }
      return values;
    }

    @Override
    public Collection<V> create(Object... elements) {

  }

  private static String normalizeParameterValue(String attribute, String value) {
    checkNotNull(value); // for GWT
    checkArgument(ascii().matchesAllOf(value), "parameter values must be ASCII: %s", value);
    return attribute.equals(CHARSET_ATTRIBUTE) ? Ascii.toLowerCase(value) : value;
  }

  /**
   * Parses a media type from its string representation.
   *

      Collection<Object> values = cache.asMap().values();
      assertThat(values.remove(null)).isFalse();
      assertThat(values.remove(6)).isFalse();
      assertThat(values.remove(-6)).isFalse();
      assertThat(values.removeAll(asList(null, 0, 15, 1500))).isFalse();
      assertThat(values.retainAll(asList(null, 0, 15, 1500))).isFalse();
      checkEmpty(values);
      checkEmpty(cache);
    }
  }

      Collection<Object> values = cache.asMap().values();
      assertThat(values.remove(null)).isFalse();
      assertThat(values.remove(6)).isFalse();
      assertThat(values.remove(-6)).isFalse();
      assertThat(values.removeAll(asList(null, 0, 15, 1500))).isFalse();
      assertThat(values.retainAll(asList(null, 0, 15, 1500))).isFalse();
      checkEmpty(values);
      checkEmpty(cache);
    }
  }

// If the checksum fails, then FormatUnknown is returned.
func (b *block) getFormat() Format {
	// Verify checksum.
	var p parser
	value := p.parseOctal(b.toV7().chksum())
	chksum1, chksum2 := b.computeChecksum()
	if p.err != nil || (value != chksum1 && value != chksum2) {
		return FormatUnknown
	}

	// Guess the magic values.
	magic := string(b.toUSTAR().magic())