1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package android.annotation; 17 18 import static java.lang.annotation.ElementType.FIELD; 19 import static java.lang.annotation.ElementType.METHOD; 20 import static java.lang.annotation.ElementType.PARAMETER; 21 import static java.lang.annotation.ElementType.TYPE_USE; 22 import static java.lang.annotation.RetentionPolicy.CLASS; 23 24 import java.lang.annotation.Retention; 25 import java.lang.annotation.Target; 26 27 /** Stub only annotation. Do not use directly. */ 28 @Retention(CLASS) 29 @Target({METHOD, PARAMETER, FIELD}) 30 public @interface Nullable {} 31