kryo.writeClassAndObject(output, obj);
            output.flush();
            return baos.toByteArray();
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Deserializes a byte array using Kryo deserialization.
     * <p>

    }

    if (testFileUrl.getProtocol().equals("file")) {
      try {
        File testFile = new File(testFileUrl.toURI());
        testDir = testFile.getParentFile(); // the testdata directory
      } catch (Exception ignore) {
        // probably URISyntaxException or IllegalArgumentException
        // fall back to copying URLs to files in the testDir == null block below
      }
    }

    if (testDir == null) {

                default:
                    if (log.isDebugEnabled()) {
                        log.debug("Found unhandled PAC buffer " + bufferType);
                    }
                }
            }
        } catch (IOException e) {
            throw new PACDecodingException("Malformed PAC", e);
        }

        if (this.serverSignature == null || this.kdcSignature == null || this.logonInfo == null) {

        @Override
        public URL getURL() {
            try {
                // Create URL with custom protocol handler for SMB
                return new URL(null, urlStr, new jcifs.smb.Handler());
            } catch (Exception e) {
                // Return null if URL creation fails
                return null;
            }
        }

        @Override
        public Address getAddress() {
            return null;

            result.setName(DfTypeUtil.toString(source.get("name")));
            result.setSessionId(DfTypeUtil.toString(source.get("sessionId")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

            result.setUpdatedBy(DfTypeUtil.toString(source.get("updatedBy")));
            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));
            result.setUserAgent(DfTypeUtil.toString(source.get("userAgent")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

                for (final Extractor extractor : extractors) {
                    try {
                        return extractor.getText(in, params);
                    } catch (final UnsupportedExtractException e) {
                        if (logger.isDebugEnabled()) {
                            logger.debug("{} does not support this data. {}", extractor.getClass().getName(), e.getMessage());

        }
    }

    /**
     * Finds a login user by username and encrypted password.
     *
     * @param username the username to search for
     * @param cipheredPassword the encrypted password to match
     * @return an optional entity containing the found user, or empty if not found
     */
    protected OptionalEntity<FessUser> doFindLoginUser(final String username, final String cipheredPassword) {

        User user = createTestUser("testuser");
        try {
            authenticationManager.insert(user);
            fail("Should throw NullPointerException when processing null chain");
        } catch (NullPointerException e) {
            // Expected behavior when null chain is processed
            assertTrue(true);
        }
    }

    // Test chains order preservation