org.checkerframework.checker.optional.qual.MaybePresent Maven / Gradle / Ivy
package org.checkerframework.checker.optional.qual;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.checkerframework.framework.qual.DefaultQualifierInHierarchy;
import org.checkerframework.framework.qual.SubtypeOf;
/**
* The {@link java.util.Optional Optional} container may or may not contain a value.
*
* @checker_framework.manual #optional-checker Optional Checker
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
@SubtypeOf({})
@DefaultQualifierInHierarchy
public @interface MaybePresent {}