jakarta.annotation.Nonnull implies optional=false

api/src/main/java/jakarta/persistence/Basic.java

@@ -97,8 +97,12 @@
      * (Optional) Specifies whether the value of the field or
      * property may be null.
      *
-     * <p>This is a hint and is disregarded for primitive types;
-     * it may be used in schema generation to infer that the
+     * <p>If the annotated field or property is of primitive type,
+     * or if it is also annotated {@code @jakarta.annotation.Nonnull},
+     * then {@code optional=false} is implied, and the value of this
+     * annotation member is ignored.
+     *
+     * <p>May be used in schema generation to infer that the
      * mapped column is {@link Column#nullable not null}.
      *
      * <p>If not specified, defaults to {@code true}.

api/src/main/java/jakarta/persistence/ManyToOne.java

@@ -123,8 +123,12 @@
     FetchType fetch() default FetchType.EAGER;
 
     /** 
-     * (Optional) Whether the association is optional. If set 
-     * to false then a non-null relationship must always exist.
+     * (Optional) Whether the association is optional. If set to
+     * {@code false} then a non-null relationship must always exist.
+     *
+     * <p>If the annotated field or property is also annotated
+     * {@code @jakarta.annotation.Nonnull}, then {@code optional=false}
+     * is implied, and the value of this annotation member is ignored.
      *
      * <p>May be used in schema generation to infer that the
      * mapped foreign key column is {@link JoinColumn#nullable

api/src/main/java/jakarta/persistence/OneToOne.java

@@ -163,8 +163,12 @@
     FetchType fetch() default FetchType.EAGER;
 
     /** 
-     * (Optional) Whether the association is optional. If set 
-     * to false then a non-null relationship must always exist.
+     * (Optional) Whether the association is optional. If set to
+     * {@code false} then a non-null relationship must always exist.
+     *
+     * <p>If the annotated field or property is also annotated
+     * {@code @jakarta.annotation.Nonnull}, then {@code optional=false}
+     * is implied, and the value of this annotation member is ignored.
      */
     boolean optional() default true;
 

spec/src/main/asciidoc/ch11-metadata-for-or-mapping.adoc

@@ -575,9 +575,9 @@ strategy hint has been specified. In particular, lazy fetching might
 only be available for `Basic` mappings for which property-based access
 is used.
 
-The `optional` element is a hint as to
-whether the value of the field or property may be null. It is
-disregarded for primitive types.
+If the annotated field or property is of primitive type, or if it is
+also annotated with `jakarta.annotation.Nonnull`, then `optional=false`
+is implied, and the value of the `optional` annotation member is ignored.
 
 .Basic Annotation Elements
 [#a14218,options="header"]
@@ -590,9 +590,9 @@ strategy is a requirement on the persistence provider runtime that the
 value must be eagerly fetched. The LAZY strategy is a hint to the
 persistence provider runtime. |EAGER
 |boolean |optional
-|(Optional) Whether the value of the field or
-property may be null. This is a hint and is disregarded for primitive
-types; it may be used in schema generation.
+|(Optional) Whether the value of the field or property may be null.
+May be used in schema generation. Ignored if the field or property
+is of primitive type or is annotated `Nonnull`.
 |true
 |===
 
@@ -2983,6 +2983,10 @@ runtime that the associated entity should be fetched lazily when it is
 first accessed. The implementation is permitted to eagerly fetch
 associations for which the `LAZY` strategy hint has been specified.
 
+If the annotated field or property is also annotated with
+`jakarta.annotation.Nonnull`, then `optional=false` is implied
+and the value of the `optional` annotation member is ignored.
+
 .ManyToOne Annotation Elements
 [#a15202,options="header"]
 |===
@@ -3010,9 +3014,10 @@ persistence provider runtime.
 
 |boolean
 |optional
-|(Optional) Whether the association is
-optional. If set to false then a non-null relationship must always
-exist.
+|(Optional) Whether the association is optional. If set to false,
+then a non-null relationship must always exist.
+May be used in schema generation. Ignored if the field or property
+is annotated `Nonnull`.
 |true
 |===
 
@@ -4118,6 +4123,10 @@ applications must otherwise not depend upon a specific order of removal,
 and must not reassign an entity that has been orphaned to another
 relationship or otherwise attempt to persist it.
 
+If the annotated field or property is also annotated with
+`jakarta.annotation.Nonnull`, then `optional=false` is implied
+and the value of the `optional` annotation member is ignored.
+
 .OneToOne Annotation Elements
 [#a15735,options="header"]
 |===
@@ -4144,9 +4153,10 @@ persistence provider runtime.
 
 |boolean
 |optional
-|(Optional) Whether the association is
-optional. If set to false then a non-null relationship must always
-exist.
+|(Optional) Whether the association is optional. If set to false,
+then a non-null relationship must always exist.
+May be used in schema generation. Ignored if the field or property
+is annotated `Nonnull`.
 |true
 
 |String