assertEquals(7, (int) newValue);
    assertEquals(7, (int) map.getInstance(TypeToken.of(Integer.class)));

    // Won't compile: map.putInstance(Double.class, new Long(42));
  }

  public void testNull() {
    assertThrows(
        NullPointerException.class,
        () -> map.putInstance((TypeToken<Integer>) null, Integer.valueOf(1)));
    map.putInstance(Integer.class, null);

    Integer newValue = map.getInstance(Integer.class);
    assertEquals(7, (int) newValue);

    // Won't compile: map.putInstance(Double.class, new Long(42));
  }

  public void testNull() {
    assertThrows(NullPointerException.class, () -> map.put(null, new Integer(1)));
    map.putInstance(Integer.class, null);
    assertThat(map.get(Integer.class)).isNull();

        .build();
  }

  private static Iterable<Striped<?>> allImplementations() {
    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {

        .build();
  }

  private static Iterable<Striped<?>> allImplementations() {
    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {

    assertEquals(7, (int) newValue);
    assertEquals(7, (int) map.getInstance(TypeToken.of(Integer.class)));

    // Won't compile: map.putInstance(Double.class, new Long(42));
  }

  public void testNull() {
    assertThrows(
        NullPointerException.class,
        () -> map.putInstance((TypeToken<Integer>) null, Integer.valueOf(1)));
    map.putInstance(Integer.class, null);

import org.junit.jupiter.api.extension.ExtensionContext
import org.junit.rules.TestRule
import org.junit.runner.Description
import org.junit.runners.model.Statement

/**
 * A log handler that records which log messages were published so that a calling test can make
 * assertions about them.
 */
class TestLogHandler(
  private val logger: Logger,
) : TestRule,
  BeforeEachCallback,
  AfterEachCallback {

 * Tests for {@link RelationshipTester}.
 *
 * @author Ben Yu
 */
@NullUnmarked
public class RelationshipTesterTest extends TestCase {
  public void testNulls() {
    new ClassSanityTester()
        .setDefault(ItemReporter.class, /* itemReporter */ Item::toString)
        .testNulls(RelationshipTester.class);
  }

    setDistinctValues(Network.class, IMMUTABLE_NETWORK_A, IMMUTABLE_NETWORK_B);
    setDefault(EndpointPair.class, EndpointPair.ordered("A", "B"));
  }

  @Override
  public void testNulls() throws Exception {
    try {
      super.testNulls();
    } catch (AssertionError e) {
      assertWithMessage("Method did not throw null pointer OR element not in graph exception.")
          .that(e)
          .hasCauseThat()

    setDistinctValues(Network.class, IMMUTABLE_NETWORK_A, IMMUTABLE_NETWORK_B);
    setDefault(EndpointPair.class, EndpointPair.ordered("A", "B"));
  }

  @Override
  public void testNulls() throws Exception {
    try {
      super.testNulls();
    } catch (AssertionError e) {
      assertWithMessage("Method did not throw null pointer OR element not in graph exception.")
          .that(e)
          .hasCauseThat()

   * version, which checks package-private methods that we don't want to have to annotate as {@code
   * Nullable} because we don't want diffs from jsr166e.
   */
  public void testNulls() {}

  public void testOverflows() {
    LongAdder longAdder = new LongAdder();
    longAdder.add(Long.MAX_VALUE);
    assertThat(longAdder.sum()).isEqualTo(Long.MAX_VALUE);
    longAdder.add(1);