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https://issues.apache.org/jira/browse/KARAF-4615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398985#comment-15398985
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Christian Schneider commented on KARAF-4615:
--------------------------------------------
I tried with embedding the OSGi jpa api into Aries JPA and use a JPA 2.1 bundle
that does not embed the OSGi JPA but it did not help.
So not sure how to proceed here. Separate feature for JPA 2.1 and JP2 2.0 might
be necessary. I am only a bit concerned about the confusions with the Aries JPA
version number.
> Cannot get OpenJPA 2.4.1 to work due to JPA 2.1 being installed
> ---------------------------------------------------------------
>
> Key: KARAF-4615
> URL: https://issues.apache.org/jira/browse/KARAF-4615
> Project: Karaf
> Issue Type: Bug
> Components: karaf-feature
> Affects Versions: 4.0.5
> Reporter: Bengt Rodehav
> Assignee: Christian Schneider
> Fix For: 4.0.6
>
>
> In order to use OpenJPA 2.4.1 both the "openjpa" (2.4.1) feature and the
> "jpa" (2.3.0) features need to be installed.
> However, OpenJPA needs JPA 2.0 - it does not work with JPA 2.1. But when
> installing the "jpa" (2.3.0) feature, JPA 2.1 is being installed.
> This has been discussed on the Karaf user list under the subject "Migrating
> from Karaf 2.4.1 to 4.0.5, JPA problems".
> I have, as a workaround, modified the enterprise-4.0.5-features.xml, feature
> "jpa" (2.3.0), as follows:
> * I have changed the version range for the peristence-api feature from
> [2.0.0,2.2.0) to [2.0.0,2.1.0). This disqualifies JPA 2.1 and instead cause
> JPA 2.0 to be installed.
> * The JPA 2.1 bundle seemed to be providing the package org.osgi.service.jpa
> which is mandatory. I therefore added the following dependency:
> ** <bundle dependency="true">mvn:org.osgi/org.osgi.service.jpa/1.0.0</bundle>
> So my modified "jpa" (2.3.0) feature now looks like this:
> <feature name="jpa" description="OSGi Persistence Container" version="2.3.0">
> <details>JPA implementation provided by Apache Aries JPA 2.x. NB: this
> feature doesn't provide the JPA engine, you have to install one by yourself
> (OpenJPA for instance)</details>
> <feature version="[1.1,2)" prerequisite="false"
> dependency="false">transaction-api</feature>
> <bundle dependency="true">mvn:org.osgi/org.osgi.service.jpa/1.0.0</bundle>
> <feature version="[2.0.0,2.1.0)" prerequisite="false"
> dependency="false">persistence-api</feature>
> <bundle
> dependency="true">mvn:org.apache.felix/org.apache.felix.coordinator/1.0.2</bundle>
> <bundle
> dependency="true">mvn:org.osgi/org.osgi.service.jdbc/1.0.0</bundle>
> <bundle>mvn:org.apache.aries.jpa/org.apache.aries.jpa.api/2.3.0</bundle>
>
> <bundle>mvn:org.apache.aries.jpa/org.apache.aries.jpa.container/2.3.0</bundle>
>
> <bundle>mvn:org.apache.aries.jpa/org.apache.aries.jpa.support/2.3.0</bundle>
> <conditional>
> <condition>aries-blueprint</condition>
>
> <bundle>mvn:org.apache.aries.jpa/org.apache.aries.jpa.blueprint/2.3.0</bundle>
> </conditional>
> </feature>
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