spring-session Assert 源码
spring-session Assert 代码
文件路径：/spring-session-data-mongodb/src/main/java/org/springframework/session/data/mongo/Assert.java
/*
* Copyright 2019 the original author or 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
*
* https://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 org.springframework.session.data.mongo;
import org.springframework.lang.Nullable;
/**
* Utility to verify non null fields.
*
* @author Greg Turnquist
*/
public final class Assert {
private Assert() {
}
public static <T> T requireNonNull(@Nullable T item, String message) {
if (item == null) {
throw new IllegalArgumentException(message);
}
return item;
}
}
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