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This source code is licensed under the Apache License Version 2.0.*/

package apijson;

import java.lang.annotation.Documented;

import java.lang.annotation.Retention;

import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.ANNOTATION_TYPE;

import static java.lang.annotation.ElementType.CONSTRUCTOR;

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;

/**非null注解

* javax.validation.constraints.NotNull不在JDK里面，为了减少第三方库引用就在这里实现了一个替代品

* @author Lemon

@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })

@Retention(RUNTIME)

@Documented

public @interface NotNull {

}