import com.google.errorprone.annotations.DoNotMock;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import com.google.j2objc.annotations.RetainedWith;
import java.lang.ref.Reference;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.CancellationException;