import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link AbstractScheduledService}.
 *
 * @author Luke Sandberg
 */
public class AbstractScheduledServiceTest extends TestCase {

  volatile Scheduler configuration = newFixedDelaySchedule(0, 10, MILLISECONDS);
  volatile @Nullable ScheduledFuture<?> future = null;

      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+1</timezone>
    </developer>
    <developer>
      <id>dennisl</id>
      <name>Dennis Lundberg</name>
      <email>******@****.***</email>
      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+1</timezone>
    </developer>

 * callbacks. Its subclasses must manage threads manually; consider {@link
 * AbstractExecutionThreadService} if you need only a single execution thread.
 *
 * @author Jesse Wilson
 * @author Luke Sandberg
 * @since 1.0
 */
@GwtIncompatible
@J2ktIncompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractService implements Service {

import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import junit.framework.TestCase;

/**
 * Tests for {@link ServiceManager}.
 *
 * @author Luke Sandberg
 * @author Chris Nokleberg
 */
public class ServiceManagerTest extends TestCase {

  private static class NoOpService extends AbstractService {
    @Override
    protected void doStart() {
      notifyStarted();

      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+1</timezone>
    </developer>
    <developer>
      <id>dennisl</id>
      <name>Dennis Lundberg</name>
      <email>******@****.***</email>
      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+1</timezone>
    </developer>

 * {@link #afterDone()}, which will be invoked automatically when the future completes. Subclasses
 * should rarely override other methods.
 *
 * @author Sven Mawson
 * @author Luke Sandberg
 * @since 1.0
 */
@SuppressWarnings({
  "ShortCircuitBoolean", // we use non-short circuiting comparisons intentionally
  "nullness", // TODO(b/147136275): Remove once our checker understands & and |.
})