*
 * <p>This class implements all methods in {@code ListenableFuture}. Subclasses should provide a way
 * to set the result of the computation through the protected methods {@link #set(Object)}, {@link
 * #setFuture(ListenableFuture)} and {@link #setException(Throwable)}. Subclasses may also override
 * {@link #afterDone()}, which will be invoked automatically when the future completes. Subclasses
 * should rarely override other methods.
 *
 * @author Sven Mawson

 *
 * <p>This class implements all methods in {@code ListenableFuture}. Subclasses should provide a way
 * to set the result of the computation through the protected methods {@link #set(Object)}, {@link
 * #setFuture(ListenableFuture)} and {@link #setException(Throwable)}. Subclasses may also override
 * {@link #afterDone()}, which will be invoked automatically when the future completes. Subclasses
 * should rarely override other methods.
 *
 * @author Sven Mawson

import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicReference;

/**
 * A hierarchical {@link ServiceRegistry} implementation.
 *
 * <p>Subclasses can register services by:</p>
 *
 * <ul>
 *
 * <li>Calling {@link #add(Class, Object)} or {@link #add(Object)} to register a service instance.</li>
 *

 * In previous Gradle versions, the `source` field in `SourceTask` was accessible from subclasses. This is not the case anymore as the `source` field is now declared as `private`.
 * In the Worker API, <<#rel5.0:worker_api, the working directory of a worker can no longer be set>>.

    }

    private interface ClassValidator {
        void validateMethod(Method method, PropertyAccessorType accessorType);
    }

    private static class ClassGenerationHandler {
         // used in subclasses
        void startType(Class<?> type) {
        }

        /**
         * Collect information about an instance method. This is called for all instance methods that are not property getter or setter methods.

import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;
import org.mockito.Mockito;

/**
 * Tests for {@link ClosingFuture}. Subclasses exercise either the {@link
 * ClosingFuture#finishToFuture()} or {@link
 * ClosingFuture#finishToValueAndCloser(ValueAndCloserConsumer, Executor)} paths to complete a
 * {@link ClosingFuture} pipeline.
 */

    public String toString() {
      synchronized (mutex) {
        return delegate.toString();
      }
    }

    // Serialization invokes writeObject only when it's private.
    // The SynchronizedObject subclasses don't need a writeObject method since
    // they don't contain any non-transient member variables, while the
    // following writeObject() handles the SynchronizedObject members.

    public String toString() {
      synchronized (mutex) {
        return delegate.toString();
      }
    }

    // Serialization invokes writeObject only when it's private.
    // The SynchronizedObject subclasses don't need a writeObject method since
    // they don't contain any non-transient member variables, while the
    // following writeObject() handles the SynchronizedObject members.

import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;
import org.mockito.Mockito;

/**
 * Tests for {@link ClosingFuture}. Subclasses exercise either the {@link
 * ClosingFuture#finishToFuture()} or {@link
 * ClosingFuture#finishToValueAndCloser(ValueAndCloserConsumer, Executor)} paths to complete a
 * {@link ClosingFuture} pipeline.
 */

  public int hashCode() {
    return runtimeType.hashCode();
  }

  @Override
  public String toString() {
    return Types.toString(runtimeType);
  }

  /** Implemented to support serialization of subclasses. */
  protected Object writeReplace() {
    // TypeResolver just transforms the type to our own impls that are Serializable
    // except TypeVariable.
    return of(new TypeResolver().resolveType(runtimeType));
  }