spring package-info 代码
文件路径：/spring-core/src/main/java/org/springframework/util/package-info.java
/**
* Miscellaneous utility classes, such as utilities for working with strings,
* classes, collections, reflection, etc.
*/
@NonNullApi
@NonNullFields
package org.springframework.util;
import org.springframework.lang.NonNullApi;
import org.springframework.lang.NonNullFields;