func EnsureCertAndKey(clientCert, clientKey string) error {
	if (clientCert != "" && clientKey == "") ||
		(clientCert == "" && clientKey != "") {
		return errors.New("cert and key must be specified as a pair")
	}
	return nil

    insertEntry(newEntryIndex, key, value, hash, mask);
    this.size = newSize;
    incrementModCount();
    return null;
  }

  /**
   * Creates a fresh entry with the specified object at the specified position in the entry arrays.
   */
  void insertEntry(
      int entryIndex, @ParametricNullness K key, @ParametricNullness V value, int hash, int mask) {

            }
        }
        throw new CrawlingAccessException("Invalid path: " + path);
    }

    /**
     * Retrieves response data for the specified URI.
     * @param uri the URI to retrieve data for
     * @param includeContent whether to include the actual content in the response
     * @return the response data containing metadata and optionally content

    // ----------------------------------------------------------------------
    //
    // ----------------------------------------------------------------------

    /** Specify the required dependencies in a specified scope */
    private String dependencyResolutionRequired = null;

    /**
     * The scope of (transitive) dependencies that should be collected but not resolved.
     * @since 3.0-alpha-3
     */

    public final int getFlags() {
        return this.flags;
    }

    /**
     * Adds the specified flags to this message.
     *
     * @param flag the flags to add
     */
    public final void addFlags(final int flag) {
        this.flags |= flag;
    }

    /**
     * Clears the specified flags from this message.
     *
     * @param flag the flags to clear
     */

    /**
     * Creates a new SMB message with the specified command.
     *
     * @param config the configuration to use
     * @param command the SMB command code
     */
    protected ServerMessageBlock(final Configuration config, final byte command) {
        this(config, command, null);
    }

    /**
     * Creates a new SMB message with the specified command and path.
     *

public abstract class MethodUtil {

    /**
     * Do not instantiate.
     */
    protected MethodUtil() {
    }

    /**
     * Invokes the underlying method represented by the {@link Method} object, with the specified object and parameters.
     *
     * @param <T>
     *            The return type of the method
     * @param method
     *            The method. Cannot be {@literal null}
     * @param target

 * Test class for jcifs.smb1.util.Hexdump utility functionality
 */
@DisplayName("SMB1 Hexdump Utility Tests")
class HexdumpTest extends BaseTest {

    @Test
    @DisplayName("Should convert integer to hex string with specified size")
    void testToHexStringInt() {
        // Test zero
        assertEquals("00000000", Hexdump.toHexString(0, 8));
        assertEquals("0000", Hexdump.toHexString(0, 4));

    }

    private synchronized NtlmChallenge getChallengeForDomain(final String domain) throws UnknownHostException, ServletException {
        if (domain == null) {
            throw new ServletException("A domain was not specified");
        }
        final long now = System.currentTimeMillis();
        int retry = 1;

        do {
            if (this.dcListExpiration < now) {

            // nothing
        }

        /**
         * Parses the web configuration IDs string into a list.
         *
         * @return list of web configuration IDs, or null if none specified
         */
        protected List<String> getWebConfigIdList() {
            if (StringUtil.isNotBlank(webConfigIds)) {
                final String[] values = webConfigIds.split(",");