}
        };

        try {
            SearchEngineUtil.getXContentString(xContent, XContentType.JSON);
            fail("Should throw IORuntimeException");
        } catch (IORuntimeException e) {
            assertTrue(e.getCause() instanceof IOException);
            assertEquals("Test exception", e.getCause().getMessage());
        }
    }

    @Test

import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.exception.InterruptedRuntimeException;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.stream.StreamUtil;
import org.codelibs.fess.Constants;

import java.util.LinkedList;
import java.util.TreeMap;
import java.util.TreeSet;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.io.SerializeUtil;
import org.codelibs.fess.util.ComponentUtil;

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;

                        throw new IORuntimeException(e);
                    }
                } else if (url.contains("plugin/repo2")) {
                    try (InputStream is = ResourceUtil.getResourceAsStream(url)) {
                        return new String(InputStreamUtil.getBytes(is), Constants.UTF_8);
                    } catch (IOException e) {
                        throw new IORuntimeException(e);
                    }

import java.io.Writer;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;

import org.apache.commons.text.StringEscapeUtils;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiBackupFilesResponse;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;

import java.io.Writer;
import java.util.Map;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.fess.Constants;

/**
 * Utility class for generating and writing thread dumps.
 * Provides methods to capture thread information for debugging purposes.
 */
public class ThreadDumpUtil {

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.SearchEngineUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.opensearch.action.admin.cluster.health.ClusterHealthResponse;
import org.opensearch.cluster.health.ClusterHealthStatus;
import org.opensearch.common.xcontent.XContentType;

/**

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.config.Configurator;
import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.core.misc.Pair;
import org.codelibs.core.timer.TimeoutManager;
import org.codelibs.core.timer.TimeoutTask;

        File invalidFile = new File("/invalid/path/test.properties");

        try {
            execJob.testCreateSystemProperties(cmdList, invalidFile);
            fail("Should throw IORuntimeException");
        } catch (IORuntimeException e) {
            assertNotNull(e.getCause());
            assertTrue(e.getCause() instanceof IOException);
        }
    }

    // Test getLogName method
    @Test

import org.codelibs.fess.crawler.Constants;
import org.codelibs.fess.exception.PluginException;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.ResourceUtil;
import org.lastaflute.di.exception.IORuntimeException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import com.fasterxml.jackson.databind.ObjectMapper;