private transient volatile @Nullable CacheEntry<K, V> cacheEntry1;
  private transient volatile @Nullable CacheEntry<K, V> cacheEntry2;

  MapRetrievalCache(Map<K, V> backingMap) {
    super(backingMap);
  }

  @SuppressWarnings("unchecked") // Safe because we only cast if key is found in map.
  @Override
  @Nullable V get(Object key) {
    checkNotNull(key);
    V value = getIfCached(key);
    if (value != null) {
      return value;

import static java.util.Arrays.asList;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import junit.framework.Test;

/**
 * Tests the {@link Map} implementations of {@link java.util}, suppressing tests that trip known
 * bugs in OpenJDK 6 or higher.
 *
 * @author Kevin Bourrillion
 */

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.resolver;

import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
import org.apache.maven.artifact.repository.ArtifactRepository;

     *
     * @param type The component type.
     * @return The map of components. The map may be empty if no components found.
     * @param <T> The component type.
     * @throws LookupException if there is some provisioning related issue.
     */
    @Nonnull
    <T> Map<String, T> lookupMap(Class<T> type);

	DB.Where(map[string]interface{}{"name": users[2].Name}).Find(&results)
	if len(results) != 1 {
		t.Fatalf("Search all records with inline map")
	}

	CheckUser(t, results[0], users[2])

	var results2 []User
	DB.Find(&results2, map[string]interface{}{"name": users[3].Name, "company_id": nil})
	if len(results2) != 0 {
		t.Errorf("Search all records with inline map containing null value finding 0 records")
	}

    //                                                                   Map Communication
    //                                                                   =================
    @Override
    public void acceptPrimaryKeyMap(Entity entity, Map<String, ? extends Object> primaryKeyMap) {
    }

    @Override
    public void acceptAllColumnMap(Entity entity, Map<String, ? extends Object> allColumnMap) {
    }

    @Override

        dr.pathConsumed = path.length();

        dfs.insert(path, dr);

        assertNotNull(dfs.referrals);
        assertFalse(dfs.referrals.map.isEmpty());
        String key = "\\server\\share\\folder";
        assertTrue(dfs.referrals.map.containsKey(key.toLowerCase()));
    }

    @Test
    void testInsert_WithTrailingSlash() {
        String path = "\\server\\share\\folder\\";

      // We mimic the order from gen.
      Map<E, Entry<E>> map = new LinkedHashMap<>();
      for (Entry<E> entry : insertionOrder) {
        map.put(entry.getElement(), entry);
      }

      Set<E> seen = new HashSet<>();
      List<Entry<E>> order = new ArrayList<>();
      for (E e : gen.order(new ArrayList<E>(map.keySet()))) {
        if (seen.add(e)) {
          order.add(map.get(e));
        }
      }

            return (T) Boolean.valueOf(value.toString());
        }
        return (T) value;
    }

    /**
     * Sets the initialization parameter map.
     * @param params The map of parameters.
     */
    @Override
    public void setInitParameterMap(final Map<String, Object> params) {
        initParamMap = params;
    }

    /**
     * Executes the request based on the HTTP method.

func filterReplicationStatusMetadata(metadata map[string]string) map[string]string {
	// Copy on write
	dst := metadata
	var copied bool
	delKey := func(key string) {
		if _, ok := metadata[key]; !ok {
			return
		}
		if !copied {
			dst = make(map[string]string, len(metadata))
			maps.Copy(dst, metadata)
			copied = true
		}