*/
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@Nullable T t) {
    return t;
  }

  private NullnessCasts() {}

  // such as BoundedQueueExecutorService to allow extends but it would be nice to make it final to
  // avoid unintended usage.

  // The execution list to hold our listeners.
  private final ExecutionList executionList = new ExecutionList();

  /**
   * Creates a {@code ListenableFutureTask} that will upon running, execute the given {@code
   * Callable}.
   *
   * @param callable the callable task

 * performance while ensuring up-to-date plugin discovery.</p>
 */
public class DataStoreFactory {
    /** Logger instance for this factory class. */
    private static final Logger logger = LogManager.getLogger(DataStoreFactory.class);

    /**
     * Map containing registered data store instances indexed by their names and class simple names.

        assertNotNull(setResult);
        assertTrue(setResult instanceof List);
    }

    // Test helper class
    public static class ComplexObject {
        private String value;

        public String getValue() {
            return value;
        }

        public void setValue(String value) {
            this.value = value;
        }
    }

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.RepeatedTest;
import org.junit.jupiter.api.Test;

/**
 * Unit tests for SimpleCircuitBreaker
 */
public class SimpleCircuitBreakerTest {

    private SimpleCircuitBreaker circuitBreaker;

    @BeforeEach
    void setUp() {
        circuitBreaker = new SimpleCircuitBreaker("test", 3, 2, 100);
    }

    @Test
    @DisplayName("Test initial state is CLOSED")

  public static <E> Iterable<E> unmodifiableIterable(ImmutableCollection<E> iterable) {
    return checkNotNull(iterable);
  }

  private static final class UnmodifiableIterable<T extends @Nullable Object>
      extends FluentIterable<T> {
    private final Iterable<? extends T> iterable;

    private UnmodifiableIterable(Iterable<? extends T> iterable) {
      this.iterable = iterable;
    }

    @Override

        .named(parentBuilder.getName() + ".entries")
        .suppressing(parentBuilder.getSuppressedTests())
        .createTestSuite();
  }

  private static final class EntriesGenerator<K, V>
      extends MultimapTestSuiteBuilder.EntriesGenerator<K, V, SetMultimap<K, V>>
      implements TestSetGenerator<Entry<K, V>> {

    EntriesGenerator(

  /** User's account name. */
  USER_NAME("user.name"),

  /** User's home directory. */
  USER_HOME("user.home"),

  /** User's current working directory. */
  USER_DIR("user.dir");

  private final String key;

  StandardSystemProperty(String key) {
    this.key = key;
  }

  /** Returns the key used to look up this system property. */
  public String key() {
    return key;
  }

   */
  @Override
  public boolean equals(@Nullable Object object) {
    return super.equals(object);
  }

  @GwtIncompatible @J2ktIncompatible   private static final long serialVersionUID = 6588350623831699109L;

   * provide a non-nullable {@code cause}, as many users expect to find one.
   */
  public ExecutionError(@Nullable Error cause) {
    super(cause);
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;