* NullPointerTester} uses best effort to pick non-null default values for many common JDK and Guava
 * types, and also for interfaces and public classes that have public parameter-less constructors.
 * When the non-null default value for a particular parameter type cannot be provided by {@code
 * NullPointerTester}, the caller can provide a custom non-null default value for the parameter type

 * NullPointerTester} uses best effort to pick non-null default values for many common JDK and Guava
 * types, and also for interfaces and public classes that have public parameter-less constructors.
 * When the non-null default value for a particular parameter type cannot be provided by {@code
 * NullPointerTester}, the caller can provide a custom non-null default value for the parameter type

    }

    default void checksNull(String s) {
      checkNotNull(s);
    }
  }

  public void testInterfaceStaticMethod() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicStaticMethods(InterfaceStaticMethodChecksNull.class);
    try {
      tester.testAllPublicStaticMethods(InterfaceStaticMethodFailsToCheckNull.class);

  }

  @J2ktIncompatible
  public void testStringConverter_nullPointerTester() throws Exception {
    Converter<String, TestEnum> converter = Enums.stringConverter(TestEnum.class);
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(converter);
  }

  public void testStringConverter_nullConversions() {
    Converter<String, TestEnum> converter = Enums.stringConverter(TestEnum.class);

  public void testNewReferenceArray_withNullArray() throws Exception {
    assertThrows(NullPointerException.class, () -> Atomics.newReferenceArray(null));
  }

  public void testNullPointers() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicConstructors(Atomics.class); // there aren't any
    tester.testAllPublicStaticMethods(Atomics.class);
  }

    assertThat(queue.remove()).isEqualTo("five");
    assertTrue(queue.isEmpty());
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointerExceptions() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicStaticMethods(EvictingQueue.class);
    tester.testAllPublicConstructors(EvictingQueue.class);

/**
 * @author Charles Fry
 */
@GwtCompatible
@J2ktIncompatible // MapMaker
@NullUnmarked
public class MapMakerTest extends TestCase {
  @GwtIncompatible // NullPointerTester
  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(new MapMaker());
  }

  @GwtIncompatible // threads

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(AtomicDoubleArray.class);
    new NullPointerTester().testAllPublicConstructors(AtomicDoubleArray.class);
    new NullPointerTester().testAllPublicInstanceMethods(new AtomicDoubleArray(1));
  }

@SuppressWarnings("SetAutoIncrementStep_Nanos")
@NullUnmarked
public class FakeTickerTest extends TestCase {

  @GwtIncompatible // NullPointerTester
  public void testNullPointerExceptions() {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(new FakeTicker());
  }

  @GwtIncompatible // java.time.Duration
  public void testAdvance() {

    out.write(buf);

    assertEquals(expectedHash, out.hash());
  }

  public void testChecksForNull() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(
        new HashingOutputStream(sha512(), new ByteArrayOutputStream()));
    tester.testAllPublicStaticMethods(HashingOutputStream.class);