import com.google.common.collect.testing.SampleElements.Enums;
import java.util.List;
import org.jspecify.annotations.NullMarked;

/**
 * An abstract {@code TestMultisetGenerator} for generating multisets containing enum values.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public abstract class TestEnumMultisetGenerator implements TestMultisetGenerator<AnEnum> {
  @Override
  public SampleElements<AnEnum> samples() {

    return NaNLinearTransformation.INSTANCE;
  }

  /** Returns whether this is a vertical transformation. */
  public abstract boolean isVertical();

  /** Returns whether this is a horizontal transformation. */
  public abstract boolean isHorizontal();

  /**
   * Returns the slope of the transformation, i.e. the rate of change of {@code y} with respect to

   * Called before runInterruptibly - if true, runInterruptibly and afterRanInterruptibly will not
   * be called.
   */
  abstract boolean isDone();

  /**
   * Do interruptible work here - do not complete Futures here, as their listeners could be
   * interrupted.
   */
  @ParametricNullness
  abstract T runInterruptibly() throws Exception;

  /**

 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@GwtIncompatible
abstract class AbstractRangeSet<C extends Comparable> implements RangeSet<C> {
  AbstractRangeSet() {}

  @Override
  public boolean contains(C value) {
    return rangeContaining(value) != null;
  }

  @Override
  public abstract @Nullable Range<C> rangeContaining(C value);

  @Override
  public boolean isEmpty() {

 *
 * @author Shardul Deo
 * @since 4.0
 */
@GwtCompatible
public abstract class ForwardingListenableFuture<V extends @Nullable Object>
    extends ForwardingFuture<V> implements ListenableFuture<V> {

  /** Constructor for use by subclasses. */
  protected ForwardingListenableFuture() {}

  @Override
  protected abstract ListenableFuture<? extends V> delegate();

  @Override

import org.junit.jupiter.params.provider.Arguments
import org.junit.jupiter.params.provider.ArgumentsProvider

abstract class SimpleProvider : ArgumentsProvider {
  override fun provideArguments(context: ExtensionContext) = arguments().map { Arguments.of(it) }.stream()

  @Throws(Exception::class)
  abstract fun arguments(): List<Any>

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.sse

import okhttp3.Response

abstract class EventSourceListener {
  /**
   * Invoked when an event source has been accepted by the remote peer and may begin transmitting
   * events.
   */
  open fun onOpen(
    eventSource: EventSource,

import java.io.InterruptedIOException
import java.util.concurrent.CountDownLatch
import java.util.concurrent.atomic.AtomicBoolean
import okio.ByteString
import okio.Source
import okio.buffer

internal abstract class BasePublicSuffixList : PublicSuffixList {
  /** True after we've attempted to read the list for the first time. */
  private val listRead = AtomicBoolean(false)

@DisableCachingByDefault(because = "Not worth caching")
abstract class ExtractAndroidStudioTask @Inject constructor(
    private val execOps: ExecOperations,
    private val fsOps: FileSystemOperations,
    private val fileOps: FileOperations
) : DefaultTask() {
    @get:InputFiles
    @get:PathSensitive(PathSensitivity.NONE)
    abstract val androidStudioRuntime: ConfigurableFileCollection

    @get:OutputDirectory

    }

    protected ClassWorld createClassWorld() {
        return new ClassWorld("plexus.core", ClassLoader.getSystemClassLoader());
    }

    protected abstract Invoker createInvoker(ClassWorld classWorld);

    protected abstract Parser createParser();