package foo; 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 javax.annotation.Nonnull; import javax.annotation.CheckForNull; import javax.annotation.meta.TypeQualifierDefault; @Retention(RetentionPolicy.RUNTIME) @Documented @CheckForNull @TypeQualifierDefault({ElementType.FIELD}) public @interface FieldsAreNullable { }