public int load() {
        final Map<String, Map<String, String[]>> relatedQueryMap = new HashMap<>();
        getAvailableRelatedQueryList().stream().forEach(entity -> {
            final String key = getHostKey(entity);
            Map<String, String[]> map = relatedQueryMap.get(key);
            if (map == null) {
                map = new HashMap<>();
                relatedQueryMap.put(key, map);
            }

     * {@link org.codelibs.core.collection.CollectionsUtil#isEmpty(java.util.Map)}
     * .
     */
    @Test
    public void testIsEmptyMapOfQQ() {
        HashMap<String, String> map = null;
        assertThat(CollectionsUtil.isEmpty(map), is(true));
        map = new HashMap<String, String>();
        assertThat(CollectionsUtil.isEmpty(map), is(true));
    }

    /**
     * Test method for

package org.codelibs.fess.it.admin;

import static org.hamcrest.Matchers.equalTo;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.fess.it.CrawlTestBase;

        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("web_config_id", getWebConfigId());
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        final Map<String, Object> updateMap = new HashMap<>();

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.it.admin;

import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

@Tag("it")
public class WebConfigTests extends CrudTestBase {

    return Arrays.asList(
        new Object[][] {
          {new MapIteratorCache<String, String>(new HashMap<String, String>())},
          {new MapIteratorCache<String, String>(new TreeMap<String, String>(nullsLast))},
          {new MapRetrievalCache<String, String>(new HashMap<String, String>())},
          {new MapRetrievalCache<String, String>(new TreeMap<String, String>(nullsLast))}
        });
  }

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.rule.impl;

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.beans.util.CopyOptions;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.unit.UnitFessTestCase;

public class DocumentHelperTest extends UnitFessTestCase {

    @Override

    return Arrays.asList(
        new Object[][] {
          {new MapIteratorCache<String, String>(new HashMap<String, String>())},
          {new MapIteratorCache<String, String>(new TreeMap<String, String>(nullsLast))},
          {new MapRetrievalCache<String, String>(new HashMap<String, String>())},
          {new MapRetrievalCache<String, String>(new TreeMap<String, String>(nullsLast))}
        });
  }

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.ds;

import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.Constants;
import org.codelibs.fess.ds.callback.IndexUpdateCallback;
import org.codelibs.fess.entity.DataStoreParams;