matrei commented on code in PR #15063:
URL: https://github.com/apache/grails-core/pull/15063#discussion_r2334797056
##########
grails-doc/src/en/guide/upgrading/upgrading60x.adoc:
##########
@@ -434,3 +434,40 @@ To learn more about development reloading options, please
see the link:gettingSt
===== 12.18 grails-i18n plugin
`org.apache.grails:grails-i18n` has been changed to
`org.apache.grails.i18n:grails-i18n` and is provided transitively, remove
`org.apache.grails:grails-i18n` and `org.grails:grails-plugin-i18n` from your
dependency list
+
+===== 12.19 hibernate.cache.region.factory_class
+
+`org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory` is deprecated in
Hibernate 5.6 and is not compatible with
`org.hibernate:hibernate-core-jakarta:{hibernate5Version}`, which is used in
Grails 7.
+
+```console
+ hibernate:
+ allow_update_outside_transaction: true
+ cache:
+ queries: false
+ use_second_level_cache: true
+ use_query_cache: false
+ region:
+ factory_class:
'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
+```
+
+If your application sets `hibernate.cache.region.factory_class` to
`org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory` it will add the
`non-jakarta` version of `hibernate-core` to your classpath which will cause
`NoClassDefFoundError` and `ClassNotFoundException` errors.
+
+You will need to change it to `jcache` and add the Ehcache dependency as
follows:
+
+```console
Review Comment:
console -> yaml ?
##########
grails-doc/src/en/guide/upgrading/upgrading60x.adoc:
##########
@@ -434,3 +434,40 @@ To learn more about development reloading options, please
see the link:gettingSt
===== 12.18 grails-i18n plugin
`org.apache.grails:grails-i18n` has been changed to
`org.apache.grails.i18n:grails-i18n` and is provided transitively, remove
`org.apache.grails:grails-i18n` and `org.grails:grails-plugin-i18n` from your
dependency list
+
+===== 12.19 hibernate.cache.region.factory_class
+
+`org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory` is deprecated in
Hibernate 5.6 and is not compatible with
`org.hibernate:hibernate-core-jakarta:{hibernate5Version}`, which is used in
Grails 7.
+
+```console
Review Comment:
console -> yaml ?
##########
grails-doc/src/en/guide/upgrading/upgrading60x.adoc:
##########
@@ -434,3 +434,40 @@ To learn more about development reloading options, please
see the link:gettingSt
===== 12.18 grails-i18n plugin
`org.apache.grails:grails-i18n` has been changed to
`org.apache.grails.i18n:grails-i18n` and is provided transitively, remove
`org.apache.grails:grails-i18n` and `org.grails:grails-plugin-i18n` from your
dependency list
+
+===== 12.19 hibernate.cache.region.factory_class
+
+`org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory` is deprecated in
Hibernate 5.6 and is not compatible with
`org.hibernate:hibernate-core-jakarta:{hibernate5Version}`, which is used in
Grails 7.
+
+```console
+ hibernate:
+ allow_update_outside_transaction: true
+ cache:
+ queries: false
+ use_second_level_cache: true
+ use_query_cache: false
+ region:
+ factory_class:
'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
+```
+
+If your application sets `hibernate.cache.region.factory_class` to
`org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory` it will add the
`non-jakarta` version of `hibernate-core` to your classpath which will cause
`NoClassDefFoundError` and `ClassNotFoundException` errors.
+
+You will need to change it to `jcache` and add the Ehcache dependency as
follows:
+
+```console
+ hibernate:
+ allow_update_outside_transaction: true
+ cache:
+ queries: false
+ use_second_level_cache: true
+ use_query_cache: false
+ region:
+ factory_class: 'jcache'
+```
+
+```console
Review Comment:
console -> groovy ?
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