import java.util.stream.Stream;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * {@link Set} implementation that asserts that a given lock is held whenever one of its methods is
 * called.
 */
@NullUnmarked
class LockHeldAssertingSet<E> extends ForwardingSet<E> implements Serializable {
  final Set<E> delegate;
  final Object mutex;

  LockHeldAssertingSet(Set<E> delegate, Object mutex) {

     *  a number of objects each time it is called.  This could be optimized
     *  to keep the same objects around, but then thread-safety issues would arise.
     *
     *  @param contextNode The node to start searching from.
     *  @param expression A valid XPath string.
     *  @return An XPathEvaluationResult, which can be used to obtain a string, number, nodelist, etc, should never be null.
     *

    }

    /**
     * Test constructor with both null message and null cause
     */
    public void test_constructor_withNullMessageAndNullCause() {
        CrawlerSystemException exception = new CrawlerSystemException(null, null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    /**

        processMethod.setAccessible(true);

        try {
            Integer result = (Integer) processMethod.invoke(null, options);
            assertNotNull(result);
            // Verify that generate was called at least once
            assertTrue(generateCallCount.get() >= 0);
        } catch (Exception e) {
            // Expected behavior when components are not fully initialized

   *
   * @param c the character to escape if necessary
   * @return the replacement characters, or {@code null} if no escaping was needed
   */
  protected abstract char @Nullable [] escape(char c);

  /**
   * Returns the escaped form of a given literal string, starting at the given index. This method is
   * called by the {@link #escape(String)} method when it discovers that escaping is required. It 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
     * merged, but overlapping ranges will cause an exception when {@link #build()} is called.
     *

     *            authority.
     * @param sids
     *            The SIDs that should be resolved. After this function is called, the names associated with the SIDs
     *            may be queried with the <code>toDisplayString</code>, <code>getDomainName</code>, and <code>getAccountName</code>
     *            methods.

            URLStreamHandler handler = PROTOCOL_HANDLERS.get(protocol);
            if (handler != null) {
                return handler;
            }
            if (factory != null) {
                handler = factory.createURLStreamHandler(protocol);
            }
            if (handler == null) {
                final String path = System.getProperty(HANDLER_PKGS_PROPERTY);

        public String getUNCPath() {
            return null;
        }

        @Override
        public String getURLPath() {
            return null;
        }

        @Override
        public String getShare() {
            return null;
        }

        @Override
        public String getServerWithDfs() {
            return null;
        }

        @Override

	// "SCHILY.xattr." namespace.
	//
	// The following are semantically equivalent:
	//  h.Xattrs[key] = value
	//  h.PAXRecords["SCHILY.xattr."+key] = value
	//
	// When Writer.WriteHeader is called, the contents of Xattrs will take
	// precedence over those in PAXRecords.
	//
	// Deprecated: Use PAXRecords instead.
	Xattrs map[string]string

	// PAXRecords is a map of PAX extended header records.
	//