}

  public void testIntersection_empty() {
    ContiguousSet<Integer> set = ContiguousSet.closed(1, 3);
    ContiguousSet<Integer> emptySet = ContiguousSet.closedOpen(2, 2);
    assertEquals(ImmutableSet.of(), set.intersection(emptySet));
    assertEquals(ImmutableSet.of(), emptySet.intersection(set));
    assertEquals(
        ImmutableSet.of(),
        ContiguousSet.create(Range.closed(-5, -1), integers())

    assertThrows(IllegalStateException.class, () -> iterable.iterator());
  }

  public void testFrom_empty() {
    Iterable<String> iterable = MinimalIterable.from(Collections.<String>emptySet());
    Iterator<String> iterator = iterable.iterator();
    assertFalse(iterator.hasNext());
    assertThrows(NoSuchElementException.class, () -> iterator.next());

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

package com.google.common.collect;

import static java.util.Collections.emptySet;
import static java.util.Collections.unmodifiableSet;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;

    array[2] = 2;
    assertThat(iia.asList()).containsExactly(0L, 1L, 3L).inOrder();
  }

  public void testCopyOf_iterable_notCollection_empty() {
    Iterable<Long> iterable = iterable(Collections.<Long>emptySet());
    assertThat(ImmutableLongArray.copyOf(iterable)).isSameInstanceAs(ImmutableLongArray.of());
  }

  public void testCopyOf_iterable_notCollection_nonempty() {
    List<Long> list = Arrays.asList(0L, 1L, 3L);

            plugins.add(newPlugin("maven-install-plugin", "install"));
            plugins.add(newPlugin("maven-deploy-plugin", "deploy"));
        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

    private Plugin newPlugin(String artifactId, String... goals) {
        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");

                }
            }
            collect = scopesToCollect == null
                    ? Collections.emptySet()
                    : Collections.unmodifiableSet(new HashSet<>(scopesToCollect));
            resolve = scopesToResolve == null
                    ? Collections.emptySet()
                    : Collections.unmodifiableSet(new HashSet<>(scopesToResolve));
            this.aggregating = aggregating;

            plugins.add(newPlugin("maven-install-plugin", "install"));
            plugins.add(newPlugin("maven-deploy-plugin", "deploy"));
        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

    private Plugin newPlugin(String artifactId, String... goals) {
        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");

        if (acceptedApiChanges != null) {
            this.acceptedApiChanges = AcceptedApiChanges.fromAcceptedChangesMap(acceptedApiChanges.get()).keySet();
        } else {
            this.acceptedApiChanges = Collections.emptySet();
        }
    }

    @Override
    @SuppressWarnings("unchecked")
    public void execute(ViolationCheckContext context) {
        Map<String, Object> userData = (Map<String, Object>) context.getUserData();

            plugins.add(newPlugin("maven-install-plugin", "install"));
            plugins.add(newPlugin("maven-deploy-plugin", "deploy"));
        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

    private Plugin newPlugin(String artifactId, String... goals) {
        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");

            plugins.add(newPlugin("maven-install-plugin", "install"));
            plugins.add(newPlugin("maven-deploy-plugin", "deploy"));
        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

    private Plugin newPlugin(String artifactId, String... goals) {
        Plugin plugin = new Plugin();

        plugin.setGroupId("org.apache.maven.plugins");