* wrap} tasks before they are submitted to the underlying executor.
 *
 * <p>Note that task wrapping may occur even if the task is never executed.
 *
 * <p>For delegation without task-wrapping, see {@link ForwardingExecutorService}.
 *
 * @author Chris Nokleberg
 */
@J2ktIncompatible
@GwtIncompatible
abstract class WrappingExecutorService implements ExecutorService {
  private final ExecutorService delegate;