* KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker.mvnenc;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.List;
import java.util.Map;
import java.util.Optional;

 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface FutureCallback<V extends @Nullable Object> {
  /** Invoked with the result of the {@code Future} computation when it is successful. */
  void onSuccess(@ParametricNullness V result);

  /**
   * Invoked when a {@code Future} computation fails or is canceled.
   *

  }

  private Throwable tryInternalFastPathGetFailure(Future<?> future) throws Exception {
    Method tryInternalFastPathGetFailureMethod =
        abstractFutureClass.getDeclaredMethod("tryInternalFastPathGetFailure");
    tryInternalFastPathGetFailureMethod.setAccessible(true);
    return (Throwable) tryInternalFastPathGetFailureMethod.invoke(future);
  }

  }

  private Throwable tryInternalFastPathGetFailure(Future<?> future) throws Exception {
    Method tryInternalFastPathGetFailureMethod =
        abstractFutureClass.getDeclaredMethod("tryInternalFastPathGetFailure");
    tryInternalFastPathGetFailureMethod.setAccessible(true);
    return (Throwable) tryInternalFastPathGetFailureMethod.invoke(future);
  }

import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code lastIndexOf()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible

import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code toArray()} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.features.CollectionFeature;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests offer operations on a queue. Can't be invoked directly; please
 * see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

import java.util.ArrayList;
import java.util.List;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code forEach} operations on a collection. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

        if (pcd == null) {
            return null;
        }
        return pcd.getRawClass();
    }

    @Override
    public <T> T invoke(final Object target, final Object... args) {
        assertArgumentNotNull("target", target);

        return MethodUtil.invoke(method, target, args);
    }

    @Override
    public <T> T invokeStatic(final Object... args) {
        if (!isStatic()) {