*
   * <p>Java 8 introduced a new method {@code getAnnotatedBounds()} in the {@link TypeVariable}
   * interface, whose return type {@code AnnotatedType[]} is also new in Java 8. As of 2025, Android
   * has not added {@link AnnotatedType}. That means that we cannot implement that interface in
   * source code in a way that will compile on both Java and Android. If we include the {@code

   *
   * <p>Java 8 introduced a new method {@code getAnnotatedBounds()} in the {@link TypeVariable}
   * interface, whose return type {@code AnnotatedType[]} is also new in Java 8. As of 2025, Android
   * has not added {@link AnnotatedType}. That means that we cannot implement that interface in
   * source code in a way that will compile on both Java and Android. If we include the {@code

         * Therefore, we can always create our own TypeVariable. (One downside of our TypeVariable
         * in some situations is that it does not support the AnnotatedType API. However, those
         * situations don't arise under Android because Android does not provide the AnnotatedType
         * API at all.)
         *
         * 2. Under the JDK, the built-in TypeVariable implementation does not interoperate with

import com.google.common.reflect.TypeToken;
import com.google.common.util.concurrent.AbstractFuture;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedType;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

         * Therefore, we can always create our own TypeVariable. (One downside of our TypeVariable
         * in some situations is that it does not support the AnnotatedType API. However, those
         * situations don't arise under Android because Android does not provide the AnnotatedType
         * API at all.)
         *
         * 2. Under the JDK, the built-in TypeVariable implementation does not interoperate with

      }
    };

    abstract boolean isExpectedType(Throwable cause);
  }

  private static boolean annotatedTypeExists() {
    try {
      Class.forName("java.lang.reflect.AnnotatedType");
    } catch (ClassNotFoundException e) {
      return false;
    }
    return true;
  }

  private static final NullnessAnnotationReader NULLNESS_ANNOTATION_READER =
      annotatedTypeExists()