package javax.annotation; import java.lang.annotation.Documented; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import javax.annotation.meta.TypeQualifierNickname; import javax.annotation.meta.When; @Documented @TypeQualifierNickname @Nonnull(when = When.MAYBE) @Retention(RetentionPolicy.RUNTIME) public @interface CheckForNull { }