@Rule
    public ExpectedException exception = ExpectedException.none();

    private final Logger logger = Logger.getLogger(getClass());

    /**
     * @throws Exception
     */
    @Test
    public void testGetLogger() throws Exception {
        assertThat(Logger.getLogger(getClass()), is(sameInstance(Logger.getLogger(getClass()))));
    }

    /**
     * @throws Exception
     */
    @Test

import org.codelibs.core.log.Logger;

/**
 * Utility class for Thread class
 *
 * @author shinsuke
 *
 */
public abstract class ThreadUtil {

    private static final Logger logger = Logger.getLogger(ThreadUtil.class);

    public static void sleep(final long millis) {
        if (millis < 1L) {
            return;
        }
        try {
            Thread.sleep(millis);

import org.codelibs.fess.dict.DictionaryFile;
import org.codelibs.fess.dict.DictionaryItem;

public class CharMappingCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(CharMappingCreator.class);

    public CharMappingCreator() {
        super("mapping.*\\.txt");
    }

    @PostConstruct
    public void register() {
        if (logger.isInfoEnabled()) {

import org.codelibs.fess.dict.DictionaryFile;
import org.codelibs.fess.dict.DictionaryItem;

public class SynonymCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(SynonymCreator.class);

    public SynonymCreator() {
        super("synonym.*\\.txt");
    }

    @PostConstruct
    public void register() {
        if (logger.isInfoEnabled()) {

    /**
     * {@link Logger}を返します。
     *
     * @param clazz
     *            ロガーのカテゴリとなるクラス。{@literal null}であってはいけません
     * @return {@link Logger}
     */
    public static synchronized Logger getLogger(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

        if (!initialized) {
            initialize();
        }
        Logger logger = loggers.get(clazz);
        if (logger == null) {

import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.util.logging.Logger;

public class ContentCache implements Closeable {

    protected static final Logger logger = Logger.getLogger(ContentCache.class.getName());

    private final byte[] data;

    private final File file;

    public ContentCache(final byte[] data) {
        this.data = data;
        this.file = null;
    }

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.util.DfTypeUtil;

/**
 * @author FreeGen
 */
public class ClickLogBhv extends BsClickLogBhv {
    private static final Logger logger = LogManager.getLogger(ClickLogBhv.class);

    private String indexName = null;

    @Override
    protected String asEsIndex() {
        if (indexName == null) {

import org.codelibs.fess.cors.CorsHandlerFactory;
import org.codelibs.fess.util.ComponentUtil;

public class CorsFilter implements Filter {

    private static final Logger logger = LogManager.getLogger(CorsFilter.class);

    protected static final String OPTIONS = "OPTIONS";

    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)

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

public class ThreadDumpUtil {
    private static final Logger logger = LogManager.getLogger(ThreadDumpUtil.class);

    protected ThreadDumpUtil() {
        // noop
    }

    public static void printThreadDump() {
        processThreadDump(logger::info);
    }

import org.xml.sax.SAXException;

/**
 * {@link SchemaFactory}のためのユーティリティ・クラスです。
 *
 * @author koichik
 */
public abstract class SchemaFactoryUtil {

    private static final Logger logger = Logger.getLogger(SchemaFactoryUtil.class);

    /**
     * W3C XML Schemaのための{@link SchemaFactory}を生成します。
     *
     * @return W3C XML Schemaのための{@link SchemaFactory}
     */