return ImmutableSet.copyOf(elements);
  }

  public void testCreation_allDuplicates() {
    ImmutableSet<String> set = ImmutableSet.copyOf(Lists.newArrayList("a", "a"));
    assertTrue(set instanceof SingletonImmutableSet);
    assertEquals(Lists.newArrayList("a"), Lists.newArrayList(set));
  }

  public void testCreation_oneDuplicate() {
    // now we'll get the varargs overload
    ImmutableSet<String> set =

    SerializableTester.reserializeAndAssert(map.entrySet());
    SerializableTester.reserializeAndAssert(map.keySet());
    assertEquals(
        Lists.newArrayList(map.values()),
        Lists.newArrayList(SerializableTester.reserialize(map.values())));
  }

  @GwtIncompatible // SerializableTester
  public void testEmpty_serialization() {
    SortedSet<String> set = new SafeTreeSet<>();

  static class SuperClass {
    final List<Object> neitherOverriddenNorAnnotatedEvents = Lists.newArrayList();
    final List<Object> overriddenInSubclassNowhereAnnotatedEvents = Lists.newArrayList();
    final List<Object> overriddenAndAnnotatedInSubclassEvents = Lists.newArrayList();

    public void neitherOverriddenNorAnnotated(Object o) {
      neitherOverriddenNorAnnotatedEvents.add(o);
    }

    /**
     * 操作の対象に含めるプロパティ名の配列です。
     */
    protected final List<String> includePropertyNames = newArrayList();

    /**
     * 操作の対象に含めないプロパティ名の配列です。
     */
    protected final List<String> excludePropertyNames = newArrayList();

    /**
     * null値のプロパティを操作の対象外にするかどうかです。
     */
    protected boolean excludesNull = false;

    /**
     * 空白のみの文字列を操作の対象外にするかどうかです。

    ArrayList<Integer> list = Lists.newArrayList(SOME_COLLECTION);
    assertEquals(SOME_COLLECTION, list);
  }

  public void testNewArrayListFromIterable() {
    ArrayList<Integer> list = Lists.newArrayList(SOME_ITERABLE);
    assertEquals(SOME_COLLECTION, list);
  }

  public void testNewArrayListFromIterator() {
    ArrayList<Integer> list = Lists.newArrayList(SOME_COLLECTION.iterator());

    ArrayList<Integer> list = Lists.newArrayList(SOME_COLLECTION);
    assertEquals(SOME_COLLECTION, list);
  }

  public void testNewArrayListFromIterable() {
    ArrayList<Integer> list = Lists.newArrayList(SOME_ITERABLE);
    assertEquals(SOME_COLLECTION, list);
  }

  public void testNewArrayListFromIterator() {
    ArrayList<Integer> list = Lists.newArrayList(SOME_COLLECTION.iterator());

  public void testPeekingIteratorBehavesLikeIteratorOnThreeElementIterable() {
    actsLikeIteratorHelper(Lists.newArrayList("A", "B", "C"));
  }

  @GwtIncompatible // works but takes 5 minutes to run
  public void testPeekingIteratorAcceptsNullElements() {
    actsLikeIteratorHelper(Lists.<@Nullable String>newArrayList(null, "A", null));
  }

  public void testPeekOnEmptyList() {
    List<?> list = emptyList();

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.truth.Truth.assertThat;
import static java.lang.Long.MAX_VALUE;
import static java.lang.Thread.currentThread;
import static java.util.concurrent.Executors.newCachedThreadPool;

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.collection;

import static org.codelibs.core.collection.CollectionsUtil.newArrayList;
import static org.codelibs.core.collection.IndexedIterator.indexed;
import static org.codelibs.core.io.LineIterator.iterable;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing;

import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.testing.testers.CollectionAddAllTester.getAddAllUnsupportedNonePresentMethod;