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Drop back to Hibernate 5.0.9.Final

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The upgrade to Hibernate 5.2.0.Final has provide to be too
problematic to live with. It requires Java 8, is incompatible with
a number of other projects in the Hibernate ecosystem, and it's
unclear for how long it will be maintained. We'd previously used
Hibernate 5.1.0.Final but its maintenance is also unclear with
Hibernate 5.1.1.Final being more than 3 months overdue.

This commit drops back to Hibernate 5.0.9.Final. This has a few
advantages:

- It's Java 7 compatible
- It's had some time to mature and should be reasonably free of
  regressions for those moving from 4.3.x
- It's used in both Wildfly and JBoss EAP so there's a fair chance
  that it will continue to be maintained.

Closes gh-6198
This commit is contained in:
Andy Wilkinson
2016-06-21 17:15:18 +01:00
parent f451de3759
commit 52e8ad4b6b
39 changed files with 1454 additions and 33 deletions
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26
spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc
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@@ -2634,31 +2634,17 @@ http://spring.io/guides/gs/accessing-data-jpa/['`Accessing Data with JPA`'] guid
http://spring.io and read the http://projects.spring.io/spring-data-jpa/[Spring Data JPA]
and http://hibernate.org/orm/documentation/[Hibernate] reference documentation.
[NOTE]
====
As of Hibernate 5.2, the `hibernate-entitymanager` module has been merged in
`hibernate-core`. If you need to downgrade, you'll need to directly add the
dependency yourself, for example:
[source,xml,indent=0]
----
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
----
As Hibernate does not bundle the `hibernate-entitymanager` and `hibernate-java8`
artifacts anymore, Spring Boot doesn't provide dependency management for them.
By default, Spring Boot uses Hibernate 5.0.x. However it's also possible to use 4.3.x
or 5.2.x if you wish. Please refer to the
{github-code}/spring-boot-samples/spring-boot-sample-hibernate4[Hibernate 4] and
{github-code}/spring-boot-samples/spring-boot-sample-hibernate52[Hibernate 5.2] samples
to see how to do so.
====
[[boot-features-entity-classes]]
==== Entity Classes
Traditionally, JPA '`Entity`' classes are specified in a `persistence.xml` file. With