*
   * <p>See {@link #checkArgument(boolean, String, Object...)} for details.
   *
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression,
      // TODO: cl/604933487 - Make errorMessageTemplate consistently @Nullable across overloads.
      @Nullable String errorMessageTemplate,
      @Nullable Object p1,
      @Nullable Object p2) {
    if (!expression) {

   *
   * <p>See {@link #checkArgument(boolean, String, Object...)} for details.
   *
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression,
      // TODO: cl/604933487 - Make errorMessageTemplate consistently @Nullable across overloads.
      @Nullable String errorMessageTemplate,
      @Nullable Object p1,
      @Nullable Object p2) {
    if (!expression) {

   * custom message otherwise.
   *
   * <p>See {@link #verify(boolean, String, Object...)} for details.
   *
   * @since 23.1 (varargs overload since 17.0)
   */
  public static void verify(
      boolean expression, String errorMessageTemplate, char p1) {
    if (!expression) {
      throw new VerifyException(lenientFormat(errorMessageTemplate, p1));

   * custom message otherwise.
   *
   * <p>See {@link #verify(boolean, String, Object...)} for details.
   *
   * @since 23.1 (varargs overload since 17.0)
   */
  public static void verify(
      boolean expression, String errorMessageTemplate, char p1) {
    if (!expression) {
      throw new VerifyException(lenientFormat(errorMessageTemplate, p1));

   * in a {@code RuntimeException}. <b>Note:</b> Be sure to declare all of the checked exception
   * types your try block can throw when calling an overload of this method so as to avoid losing
   * the original exception type.
   *
   * <p>This method always throws, and as such should be called as {@code throw closer.rethrow(e);}

    Long boxedLong = null;
    int anInt = 1;
    // With a boxed predicate, no overloads can be selected in phase 1
    // ambiguous without the call to .booleanValue to unbox the Boolean
    checkState(boxedBoolean.booleanValue(), "", 1);
    // ambiguous without the cast to Object because the boxed predicate prevents any overload from
    // being selected in phase 1
    checkState(boxedBoolean, "", (Object) boxedLong);

    Long boxedLong = null;
    int anInt = 1;
    // With a boxed predicate, no overloads can be selected in phase 1
    // ambiguous without the call to .booleanValue to unbox the Boolean
    checkState(boxedBoolean.booleanValue(), "", 1);
    // ambiguous without the cast to Object because the boxed predicate prevents any overload from
    // being selected in phase 1
    checkState(boxedBoolean, "", (Object) boxedLong);

    assertTrue(set instanceof SingletonImmutableSet);
    assertEquals(Lists.newArrayList("a"), new ArrayList<>(set));
  }

  public void testCreation_oneDuplicate() {
    // now we'll get the varargs overload
    @SuppressWarnings("DistinctVarargsChecker") // deliberately testing deduplication
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "a");

    assertTrue(set instanceof SingletonImmutableSet);
    assertEquals(Lists.newArrayList("a"), new ArrayList<>(set));
  }

  public void testCreation_oneDuplicate() {
    // now we'll get the varargs overload
    @SuppressWarnings("DistinctVarargsChecker") // deliberately testing deduplication
    ImmutableSet<String> set =
        ImmutableSet.of("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "a");

import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link FakeTicker}.
 *
 * @author Jige Yu
 */
@GwtCompatible
// We also want to test the TimeUnit overload (especially under GWT, where it's the only option).
@SuppressWarnings("SetAutoIncrementStep_Nanos")
@NullUnmarked
public class FakeTickerTest extends TestCase {

  @GwtIncompatible // NullPointerTester