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https://issues.apache.org/jira/browse/KARAF-4615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417339#comment-15417339
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Bengt Rodehav commented on KARAF-4615:
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Sorry for not answering for a while. I have been on vacation (without computer
access) and now returned. Will take a look at this beginning of next week.
What is the best way for me to test this? Is it to download latest version of
the feature and test it in my application? Is the feature the only thing you
have changed?
> 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: 4.1.0, 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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