// characters, as defined by [unicode.IsSpace], returning a slice of subslices of s or an
// empty slice if s contains only white space. Every element of the returned slice is
// non-empty. Unlike [Split], leading and trailing runs of white space characters
// are discarded.
func Fields(s []byte) [][]byte {
	// First count the fields.
	// This is an exact count if s is ASCII, otherwise it is an approximation.
	n := 0
	wasSpace := 1

     * the root URL <code>smb://</code> is also <code>smb://</code>. If this
     * <code>SmbFile</code> refers to a workgroup, server, share, or directory,
     * the name will include a trailing slash '/' so that composing new
     * <code>SmbFile</code>s will maintain the trailing slash requirement.
     *
     * @return The last component of the URL associated with this SMB
     *         resource or <code>smb://</code> if the resource is <code>smb://</code>

    @Nested
    @DisplayName("doShareEnum early validation")
    class DoShareEnumValidation {

        static Stream<Arguments> invalidShareEnumCases() {
            return Stream.of(
                    // Missing trailing slash -> should complain about directory ending
                    Arguments.of("smb://server/share", "/share", true),
                    // Not a server root -> invalid list operation

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_exceptionChaining() {
        // Test exception chaining
        Throwable rootCause = new IllegalArgumentException("Invalid argument");
        Throwable intermediateCause = new RuntimeException("Processing failed", rootCause);
        String message = "Plugin operation failed";

    "output": "xn----xhn"
  },
  {
    "input": "-x.xn--zca",
    "output": "-x.xn--zca"
  },
  {
    "input": "-x.ß",
    "output": "-x.xn--zca"
  },
  {
    "comment": "Label with trailing hyphen",
    "input": "x-.xn--zca",
    "output": "x-.xn--zca"
  },
  {
    "input": "x-.ß",
    "output": "x-.xn--zca"
  },
  {
    "comment": "Empty labels",
    "input": "x..xn--zca",

The benefit of raising an exception over returning a value will be more evident in the section about Dependencies and Security.

In this example, when the client requests an item by an ID that doesn't exist, raise an exception with a status code of `404`:

    }

    /**
     * Sets the query builder for filtering documents.
     *
     * @param queryBuilder the query builder to filter documents
     * @return this UpdateLabelJob instance for method chaining
     */
    public UpdateLabelJob query(final QueryBuilder queryBuilder) {
        this.queryBuilder = queryBuilder;
        return this;
    }

        // Execute
        corsHandlerFactory.add(originWithSlash, handlerWithSlash);
        corsHandlerFactory.add(originWithoutSlash, handlerWithoutSlash);

        // Verify - trailing slash matters
        assertEquals(handlerWithSlash, corsHandlerFactory.get(originWithSlash));
        assertEquals(handlerWithoutSlash, corsHandlerFactory.get(originWithoutSlash));
    }

fun String.canParseAsIpAddress(): Boolean = VERIFY_AS_IP_ADDRESS.matches(this)

/**
 * Returns true if the length is not valid for DNS (empty or greater than 253 characters), or if any
 * label is longer than 63 characters. Trailing dots are okay.
 */
internal fun String.containsInvalidLabelLengths(): Boolean {
  if (length !in 1..253) return true

  var labelStart = 0
  while (true) {
    val dot = indexOf('.', startIndex = labelStart)

    }

    /**
     * Sets the expiration time for thumbnails.
     *
     * @param expiry the expiration time in milliseconds (must be positive)
     * @return this PurgeThumbnailJob instance for method chaining
     */
    public PurgeThumbnailJob expiry(final long expiry) {
        if (expiry > 0) {
            this.expiry = expiry;
        }
        return this;
    }