return arrays == null || arrays.length == 0;
    }

    /**
     * 配列が{@literal null}でも長さが0でもない場合は{@literal true}を返します。
     *
     * @param arrays
     *            配列
     * @return 配列が{@literal null}または長さが0の場合は{@literal true}
     */
    public static boolean isNotEmpty(final boolean[] arrays) {
        return arrays != null && arrays.length != 0;
    }

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

import java.util.Arrays;
import java.util.Collections;
import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Stream;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.beans.BeanDesc;
import org.codelibs.core.beans.ConstructorDesc;
import org.codelibs.core.beans.FieldDesc;

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

import static java.util.Arrays.asList;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.junit.Assert.assertThat;

import java.util.Iterator;
import java.util.List;

        }
    }

    @Override
    public Object clone() {
        final ArrayMap<K, V> copy = new ArrayMap<>();
        copy.threshold = threshold;
        copy.mapTable = Arrays.copyOf(mapTable, size);
        copy.listTable = Arrays.copyOf(listTable, size);
        copy.size = size;
        return copy;
    }

    /**
     * エントリのインデックスを返します。
     *
     * @param entry
     *            エントリ