* limitations under the License.
 */

package com.google.common.util.concurrent;

import static com.google.common.util.concurrent.NullnessCasts.uncheckedCastNullableTToT;

import org.checkerframework.checker.nullness.qual.Nullable;

/** Emulation for InterruptibleTask in GWT. */
@ElementTypesAreNonnullByDefault

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.NullnessCasts.uncheckedCastNullableTToT;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.NoSuchElementException;
import javax.annotation.CheckForNull;

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.base;

import static com.google.common.base.NullnessCasts.uncheckedCastNullableTToT;
import static com.google.common.base.Preconditions.checkState;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Iterator;

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.base;

import static com.google.common.base.NullnessCasts.uncheckedCastNullableTToT;
import static com.google.common.base.Preconditions.checkState;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Iterator;

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.NullnessCasts.uncheckedCastNullableTToT;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.NoSuchElementException;
import javax.annotation.CheckForNull;

import static com.google.common.util.concurrent.Futures.getDone;
import static com.google.common.util.concurrent.MoreExecutors.rejectionPropagatingExecutor;
import static com.google.common.util.concurrent.NullnessCasts.uncheckedCastNullableTToT;
import static com.google.common.util.concurrent.Platform.isInstanceOfThrowableClass;
import static com.google.common.util.concurrent.Platform.restoreInterruptIfIsInterruptedException;

   * value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
    return t;
  }

  private NullnessCasts() {}

   * value may be legitimately {@code null}.)
   */
  @SuppressWarnings("nullness")
  @ParametricNullness
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
    return t;
  }

  /**
   * Returns {@code null} cast to any type.
   *
   * <p>This method is intended to help with usages of type parameters that have {@linkplain

   * value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
    return t;
  }

  /** Returns {@code null} as any type, even one that does not include {@code null}. */

   * value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
    return t;
  }

  private NullnessCasts() {}