System.exit(2);
        }

        String targetRef = "refs/remotes/origin/" + targetBranch;

        if (!refExists(targetRef)) {
            System.err.println("Target ref " + targetRef + " not present locally; fetching origin/" + targetBranch + "...");
            run("git", "fetch", "origin", targetBranch);
        }

        String targetSha = stdout("git", "rev-parse", targetRef).trim();

import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.function.UnaryOperator;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.xml.xpath.XPathEvaluationResult;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.commons.text.StringEscapeUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

        assertTrue(protocolHelper.isValidWebProtocol("ftp://example.com"));
        assertTrue(protocolHelper.isValidWebProtocol("http://"));
        assertTrue(protocolHelper.isValidWebProtocol("https://test.local/path"));
    }

    @Test
    public void test_isValidWebProtocol_invalidUrls() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override

    public static final String LOG_NOTIFICATION_LEVEL_PROPERTY = "fess.log.notification.level";

    /** Property key for browser locale usage in search configuration. */
    public static final String USE_BROWSER_LOCALE_FOR_SEARCH_PROPERTY = "search.use.browser.locale";

    // ============================================================
    // Suggest and LTR Property Keys

        default -> throw new IllegalArgumentException("Unexpected value: " + serializer);
        };
    }

    /**
     * Serializes an object using Kryo serialization.
     * <p>
     * Uses the thread-local Kryo instance to serialize the object along with
     * its class information. The serialized data is written to a byte array
     * output stream.
     * </p>
     *
     * @param obj the object to serialize

        Matcher matcher = ACCESSOR_COMMENT_PATTERN.matcher(comment.getData());
        if (matcher.lookingAt()) {
            String theOrWhether = matcher.group(1).toLowerCase(Locale.US);
            comment.setData(StringUtils.capitalize(theOrWhether) + " " + comment.getData().substring(matcher.end()));
        }
    }

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import org.apache.commons.io.FileUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.io.ResourceUtil;

- **Elasticsearch / OpenSearch** - Direct data migration via bulk APIs
- **Apache Solr** - Document import via REST API
- **Database Systems** - Direct connection via DataStore plugins
- **File Systems** - SMB, FTP, local file crawling
- **Custom Systems** - REST API for bulk document indexing

---

## Pre-Migration Planning

### 1. Assessment Phase

Before starting migration, assess your current system:

        final String contextPath = resolveContextPath();
        // Note: Locale is resolved via LaRequestUtil in LlmClient. During long SSE processing,
        // the request context may become unavailable, falling back to Locale.getDefault().
        if (logger.isDebugEnabled()) {