}

    // Happy path: overlaps delegates to implementation and returns as stubbed
    @Test
    @DisplayName("overlaps returns true then false as stubbed")
    void overlapsReturnsTrueThenFalse() throws Exception {
        when(locator.overlaps(other)).thenReturn(true, false);

        assertTrue(locator.overlaps(other));
        assertFalse(locator.overlaps(other));

	return Mask(m.Mask())
}

// Contains returns whether *all* flags in other is present in t.
func (t Mask) Contains(other Mask) bool {
	return t&other == other
}

// Overlaps returns whether *any* flags in t overlaps with other.
func (t Mask) Overlaps(other Mask) bool {
	return t&other != 0
}

// SingleType returns whether t has a single type set.
func (t Mask) SingleType() bool {
	return bits.OnesCount64(uint64(t)) == 1
}

    /**
     * Determines whether this resource path overlaps with another resource path by sharing a common root.
     *
     * @param other the other resource locator to compare with
     * @return whether the paths share a common root
     * @throws CIFSException if an error occurs during comparison
     */
    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**

 * </p>
 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
// TODO Kristian wonders if this class really is necessary and if it overlaps other concepts.
public final class ProjectIndex {

    private final Map<String, MavenProject> projects;

    private final Map<String, Integer> indices;

    public ProjectIndex(List<MavenProject> projects) {

// and 0 will be returned if nobody is subscribed for the type(s).
func (ps *PubSub[T, M]) NumSubscribers(mask M) int32 {
	types := Mask(atomic.LoadUint64(&ps.types))
	if !types.Overlaps(Mask(mask.Mask())) {
		return 0
	}
	return atomic.LoadInt32(&ps.numSubscribers)
}

// Subscribers returns the number of current subscribers for all types.
func (ps *PubSub[T, M]) Subscribers() int32 {

                    Set.of() // errors
                    );

            UpgradeResult result2 = new UpgradeResult(
                    Set.of(pom1), // processed (overlap)
                    Set.of(pom1, pom2), // modified (overlap + new)
                    Set.of() // errors
                    );

            UpgradeResult merged = result1.merge(result2);

* Some public APIs have incorrect nullability annotations (both overly restrictive and overly permissive)

While there are competing ways to represent absence (`Optional`, "Null Object" pattern, method overloads),
it is unlikely that we'll be able to remove `null` entirely.

After migrating to Java 8, we can use pluggable type checkers to ensure that our annotations are consistent, 
and there are no missing null checks.

      TYPE_PRIORITY, TYPE_RST_STREAM, TYPE_GOAWAY, TYPE_WINDOW_UPDATE -> return BINARY[flags]
    }
    val result = if (flags < FLAGS.size) FLAGS[flags]!! else BINARY[flags]
    // Special case types that have overlap flag values.
    return when {
      type == TYPE_PUSH_PROMISE && flags and FLAG_END_PUSH_PROMISE != 0 -> {
        result.replace("HEADERS", "PUSH_PROMISE") // TODO: Avoid allocation.
      }

    validations:
      required: true

  - type: textarea
    id: orthogonality
    attributes:
      label: "Orthogonality: How does this change interact or overlap with existing features?"
      description: "Is the goal of this change a performance improvement? If so, what quantifiable improvement should we expect? How would we measure it?"
    validations:
      required: false

	"52654973": "REISERFS",
	"5346544e": "NTFS",
	"58465342": "XFS",
	"61756673": "AUFS",
	"6969":     "NFS",
	"ef51":     "EXT2OLD",
	"ef53":     "EXT4",
	"f15f":     "ecryptfs",
	"794c7630": "overlayfs",
	"2fc12fc1": "zfs",
	"ff534d42": "cifs",
	"53464846": "wslfs",
}

// getFSType returns the filesystem type of the underlying mounted filesystem
func getFSType(ftype uint32) string {