* Provides methods to capture thread information for debugging purposes.
 */
public class ThreadDumpUtil {
    private static final Logger logger = LogManager.getLogger(ThreadDumpUtil.class);

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    protected ThreadDumpUtil() {
        // noop
    }

    /**
     * Prints thread dump information to the logger at INFO level.

                try {
                    // Test different methods concurrently
                    ThreadDumpUtil.printThreadDump();
                    ThreadDumpUtil.printThreadDumpAsWarn();
                    ThreadDumpUtil.printThreadDumpAsError();

                    List<String> output = new ArrayList<>();
                    ThreadDumpUtil.processThreadDump(output::add);

                    if (!output.isEmpty()) {

import org.codelibs.fess.timer.HotThreadMonitorTarget;
import org.codelibs.fess.timer.SystemMonitorTarget;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SystemUtil;
import org.codelibs.fess.util.ThreadDumpUtil;
import org.dbflute.mail.send.hook.SMailCallbackContext;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.CmdLineParser;
import org.kohsuke.args4j.Option;
import org.lastaflute.core.mail.Postbox;

import org.codelibs.fess.opensearch.log.exbhv.FavoriteLogBhv;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocList;
import org.codelibs.fess.util.MemoryUtil;
import org.codelibs.fess.util.ThreadDumpUtil;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.sort.SortOrder;