return appendTo(new StringBuilder(), entries).toString();
    }

    /**
     * Returns a map joiner with the same behavior as this one, except automatically substituting
     * {@code nullText} for any provided null keys or values.
     */
    public MapJoiner useForNull(String nullText) {
      return new MapJoiner(joiner.useForNull(nullText), keyValueSeparator);
    }
  }

  // TODO(cpovirk): Rename to "toCharSequence."

        for (Map.Entry<String, Object> entry : context.entrySet()) {
            String key = entry.getKey().toLowerCase();
            Object value = entry.getValue();

            // Mask sensitive keys
            if (key.contains("password") || key.contains("secret") || key.contains("token") || key.contains("credential")) {
                masked.put(entry.getKey(), "****");
            } else if (value instanceof String) {

            referralData.setLink(link);
            assertEquals(link, referralData.getLink());
        }

        @ParameterizedTest
        @NullAndEmptySource
        @DisplayName("Should handle null and empty keys")
        void testNullAndEmptyKeys(String key) {
            referralData.setKey(key);
            assertEquals(key, referralData.getKey());
        }

        @Test

	if len(errMap) == 0 {
		return nil
	}

	// Get ordered list of keys of errMap
	keys := []string{}
	for d := range errMap {
		keys = append(keys, d)
	}
	sort.Strings(keys)

	var success int
	msgs := []string{}
	for _, d := range keys {
		name := c.state.Peers[d].Name
		err := errMap[d]
		if err == nil {

				"application/mbms-user-service-description+xml",
				"application/mbox",
				"application/media_control+xml",
				"application/mediaservercontrol+xml",
				"application/mikey",
				"application/moss-keys",
				"application/moss-signature",
				"application/mosskey-data",
				"application/mosskey-request",
				"application/mp4",
				"application/mpeg4-generic",
				"application/mpeg4-iod",

      requireNonNull(contents); // see the comment on the field
      if (contents.size() == 0) {
        return of();
      }
      if (isLinkedHash) {
        // we need ObjectCountHashMap-backed contents, with its keys and values array in direct
        // insertion order
        contents = new ObjectCountHashMap<E>(contents);
        isLinkedHash = false;
      }
      buildInvoked = true;

   *       {@code hashCode()} implementations. (See the <a
   *       href="https://github.com/google/guava/wiki/GraphsExplained#elements-must-be-useable-as-map-keys">
   *       notes on element objects</a> for more information.)
   *   <li>While traversing, the traverser will use <i>O(n)</i> space (where <i>n</i> is the number

    public static final NullsBeforeTwo INSTANCE = new NullsBeforeTwo();

    private NullsBeforeTwo() {
      super("two"); // from TestStringSortedMapGenerator's sample keys
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getMethod(Class<?> clazz, String name) {
    try {
      return clazz.getMethod(name);
    } catch (Exception e) {

	isGlobal := hdr.Typeflag == TypeXGlobalHeader
	if len(paxHdrs) > 0 || isGlobal {
		// Write each record to a buffer.
		var buf strings.Builder
		// Sort keys for deterministic ordering.
		for _, k := range slices.Sorted(maps.Keys(paxHdrs)) {
			rec, err := formatPAXRecord(k, paxHdrs[k])
			if err != nil {
				return err
			}
			buf.WriteString(rec)
		}

		// Write the extended header file.

      return appendTo(new StringBuilder(), entries).toString();
    }

    /**
     * Returns a map joiner with the same behavior as this one, except automatically substituting
     * {@code nullText} for any provided null keys or values.
     */
    public MapJoiner useForNull(String nullText) {
      return new MapJoiner(joiner.useForNull(nullText), keyValueSeparator);
    }
  }

  // TODO(cpovirk): Rename to "toCharSequence."