assertEquals(0, qrList.size());

        assertFalse(qrList.remove(new HashMap<>()));
        assertFalse(qrList.contains(new HashMap<>()));
        assertFalse(qrList.containsAll(Arrays.asList(new HashMap<>())));

        assertEquals(-1, qrList.indexOf(new HashMap<>()));
        assertEquals(-1, qrList.lastIndexOf(new HashMap<>()));

        // Test iterators on empty list

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;

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

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.BeforeEach;

import io.restassured.path.json.JsonPath;

        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<>();

     * {@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

import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.codelibs.curl.io.ContentCache;
import org.junit.Test;

/**
 * Test class for CurlResponse.

        Map<String, Object> regularMap = new HashMap<>();
        regularMap.put("key1", "value1");

        Map<String, Object> result = DataStoreParams.getDataMap(regularMap);
        assertSame(regularMap, result);
    }

    // Test protected constructor with Map parameter
    public void test_protectedConstructor() {
        Map<String, Object> inputMap = new HashMap<>();
        inputMap.put("key1", "value1");

import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.mockStatic;

import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.security.auth.kerberos.KerberosKey;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;

    @Override
    protected final Map<String, String> create(Entry<String, String>[] entries) {
      HashMap<String, String> map = new HashMap<>();
      for (Entry<String, String> entry : entries) {
        map.put(entry.getKey(), entry.getValue());
      }
      return wrap(map);
    }

    abstract Map<String, String> wrap(HashMap<String, String> map);
  }

  private static TestSuite wrappedHashMapTests(

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

    private static final String NEW_SUFFIX = "_new";

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

  protected Map<String, String> makeEmptyMap() {
    Map<String, Integer> underlying = new HashMap<>();
    return transformValues(
        new UnmodifiableIteratorMap<String, Integer>(underlying), Functions.toStringFunction());
  }

  @Override
  protected Map<String, String> makePopulatedMap() {
    Map<String, Integer> underlying = new HashMap<>();
    underlying.put("a", 1);
    underlying.put("b", 2);