combined := Mask(atomic.LoadUint64(&ps.types))
	combined.Merge(Mask(mask.Mask()))
	atomic.StoreUint64(&ps.types, uint64(combined))

	go func() {
		<-doneCh

		ps.Lock()
		defer ps.Unlock()
		var remainTypes Mask
		for i, s := range ps.subs {
			if s == sub {
				ps.subs = append(ps.subs[:i], ps.subs[i+1:]...)
			} else {
				remainTypes.Merge(s.types)
			}
		}

                                    + "  </properties>\n"
                                    + "</project>"),
                            true,
                            new InputSource(null, "merge-input"));
            propertiesLocation = mergeInput.getLocation("properties");
            assertNotNull(propertiesLocation);
            assertEquals(2, propertiesLocation.getLineNumber());

        result.setLocations(locations);

        return result;
    } // -- InputLocation merge( InputLocation, InputLocation, boolean )

    /**
     * Method merge.
     *
     * @param target
     * @param indices
     * @param source
     * @return InputLocation
     */
    public static InputLocation merge(
            InputLocation target, InputLocation source, java.util.Collection<Integer> indices) {

        <artifactId>default</artifactId>
        <version>3.0</version>
        <configuration>
          <defaults><!-- equivalent to combine.children="merge" combine.self="merge" -->
            <!-- merge the content of the configuration element according to element name -->
            <parent>child</parent>
            <child>child</child>
            <parent-only>parent</parent-only>

        _ * classDoc.classExtensions >> []
        _ * classDoc.subClasses >> []

        when:
        def result = parse('<chapter/>', document)
        withCategories {
            renderer.merge(classDoc, result)
        }

        then:
        formatTree(result) == '''<chapter>
    <section>
        <title>Properties</title>
        <table>
            <title>Properties - Class</title>

     *
     * @return the filename
     */
    String getRemoteFilename();

    /**
     * Merge a new metadata set into this piece of metadata.
     * TODO this should only be needed on the repository metadata {@link org.apache.maven.artifact.metadata.ArtifactMetadata}
     *
     * @param metadata the new metadata
     */
    void merge(ArtifactMetadata metadata);

    /**
     * Store the metadata in the local repository.

    Iterator<C> merged =
        mergeSorted(
            transform(backingMap.values(), (Map<C, V> input) -> input.keySet().iterator()),
            comparator);

    return new AbstractIterator<C>() {
      @CheckForNull C lastValue;

      @Override
      @CheckForNull
      protected C computeNext() {
        while (merged.hasNext()) {
          C next = merged.next();

     * and will be merged, but overlapping ranges will cause an exception when {@link #build()} is
     * called.
     */
    @CanIgnoreReturnValue
    public Builder<C> addAll(RangeSet<C> ranges) {
      return addAll(ranges.asRanges());
    }

    /**
     * Add all of the specified ranges to this builder. Adjacent ranges are permitted and will be

    its dependencies and the rest of the system.
-   Rarely, If the tests fail at this stage, we cannot merge the code.
-   If needed, we may come to you to make some changes. At times, it may not be
    you, it may be us who may have hit a snag. Please be patient while we work
    to fix this.
-   Once the internal tests pass, we go ahead and merge the code internally as
    well as externally on GitHub.

	a, b := org.shallowClone(), org.shallowClone()
	be := b.entries()
	for i := range be {
		//  Modify b so it isn't deduplicated.
		be[i].metadata = []byte("something-else")
	}
	// Merge b into a
	a.merge(b, -1)
	//nolint:gocritic
	want := append(loadMetacacheSampleNames, loadMetacacheSampleNames...)
	sort.Strings(want)
	got := a.entries().names()
	if len(got) != len(want) {