com.google.common.collect.ParametricNullness Maven / Gradle / Ivy
Go to download
This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright (C) 2021 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* Marks a "top-level" type-variable usage as the closest we can get to "non-nullable when
* non-nullable; nullable when nullable" (like the Android {@code
* NullFromTypeParam}).
*
* Consumers of this annotation include:
*
*
* - Kotlin, for which it makes the type-variable usage (a) a Kotlin platform type when the type
* argument is non-nullable and (b) nullable when the type argument is nullable. We use this
* to "undo" {@link ElementTypesAreNonnullByDefault}.
*
- J2ObjC
*
- {@code NullPointerTester}, at least in the Android backport (where the type-use annotations
* {@code NullPointerTester} would need are not available) and in case of JDK-8202469
*
*
*/
@GwtCompatible
@Retention(RUNTIME)
@Target({FIELD, METHOD, PARAMETER})
@javax.annotation.meta.TypeQualifierNickname
@javax.annotation.Nonnull(when = javax.annotation.meta.When.UNKNOWN)
@interface ParametricNullness {}