Thank you Christian !

--
Nicolas Dutertry

De : Christian Schneider [mailto:[email protected]] De la part de 
Christian Schneider
Envoyé : lundi 8 février 2016 12:01
À : [email protected]
Objet : Re: JPA and transaction issue in Karaf 4.0.4

Hi Nicolas,

I was able to reproduce the issue and created a jira issue for it
https://issues.apache.org/jira/browse/ARIES-1494

I also found the workaround to make the method TestServiceImpl.delete also 
@Transactional. Still this is a severe issue and I will try to fix it as soon 
as possible.

Christian

On 08.02.2016 11:17, Dutertry Nicolas wrote:
Hi Christian,

Thanks for you answer. I have fixed the 2 issues (correct jpa namespace and 
pax-jdbc for datasource) but unfortunately, the error is still there.
The new code is committed on github.
Regards,
--
Nicolas

De : [email protected]<mailto:[email protected]> 
[mailto:[email protected]] De la part de Christian Schneider
Envoyé : samedi 6 février 2016 19:09
À : [email protected]<mailto:[email protected]>
Objet : Re: JPA and transaction issue in Karaf 4.0.4

Hi Nicolas,

I found some issues with your example but nothing that could fully explain the 
error.

1. In blueprint.xml you use the namespace 
xmlns:jpa="http://aries.apache.org/xmlns/jpan/v1.0.0";. This is deprecated. The 
correct one is xmlns:jpa="http://aries.apache.org/xmlns/jpa/v2.0.0";
2. Your DataSource is not fully JTA enabled. (You are using 
org.apache.commons.dbcp2.managed.BasicManagedDataSource)

You can see how to setup dbcp2 in
https://github.com/ops4j/org.ops4j.pax.jdbc/blob/master/pax-jdbc-pool-dbcp2/src/main/java/org/ops4j/pax/jdbc/pool/dbcp2/impl/ds/DbcpXAPooledDataSourceFactory.java

I suggest to simply use pax-jdbc-pool-dbcp2 und pax-jdbc-config to create your 
DataSource. See
https://ops4j1.jira.com/wiki/display/PAXJDBC/Pooling+and+XA+support+for+DataSourceFactory

Can you try if fixing these two issues helps?
If not then it might be a bug and I will investigate it deeper.

Christian

2016-02-05 15:07 GMT+01:00 Dutertry Nicolas 
<[email protected]<mailto:[email protected]>>:
Hi,

I’m trying to migrate an application working with Karaf 3.0.5 to Karaf 4.0.4.
I ran into a problem with JPA and transaction management so I have created a 
small maven project showing it.
This sample is available on GitHub : 
https://github.com/nicolas-dutertry/test-jpa

The class TestServiceImpl in test-jpa-service has an EntityManager annoted with 
@PersistenceContext(unitname = "test")
The class DeleteManager also has an EntityManager annoted with 
@PersistenceContext(unitname = "test")

The method TestServiceImpl.delete is not transactional and it calls the 
transactional method DeleteManager.delete several times :

public class TestServiceImpl implements TestService {
    @PersistenceContext(unitName = "test")
    private EntityManager entityManager;

    private DeleteManager deleteManager;

    …

    @Override
    public void delete(String... names) {
        for (String name : names) {
            System.out.println("Deleting " + name);
            deleteManager.delete(name);
        }
    }
}

public class DeleteManager {
    @PersistenceContext(unitName = "test")
    private EntityManager entityManager;

    …

    @Transactional
    public void delete(String lastName) {
        Query query = entityManager.createQuery(
            "delete from Person where lastName = :lastName");

        query.setParameter("lastName", lastName);
        query.executeUpdate();
    }
}

At runtime it raised a javax.persistence.TransactionRequiredException during 
the second call to DeleteManager.delete in the for loop.

To reproduce the problem, compile the sample project with maven:
> mvn clean install

Then, launch Karaf 4.0.4 and install the kar:
> kar:install mvn:com.dutertry.test.karaf.jpa/test-jpa-kar/1.0.0-SNAPSHOT/kar

Then, create new entries in database:
> person:create Smith 25
> person:create Green 23

Finally delete them:
> person:delete Smith Green

This will output :
Deleting Smith
Deleting Green
Error executing command: Executing an update/delete query

With the following log :
2016-02-05 14:52:32,753 | ERROR | nsole user karaf | ShellUtil                  
      | 44 - org.apache.karaf.shell.core - 4.0.4 | Exception caught while 
executing command
javax.persistence.TransactionRequiredException: Executing an update/delete query
                at 
org.hibernate.jpa.spi.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:71)
                at 
com.dutertry.test.karaf.jpa.service.impl.DeleteManager.delete(DeleteManager.java:33)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)[:1.7.0_67]
                at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[:1.7.0_67]
                at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_67]
                at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_67]
                at 
org.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)[21:org.apache.aries.proxy.impl:1.0.4]
                at 
org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)[21:org.apache.aries.proxy.impl:1.0.4]
                at 
com.dutertry.test.karaf.jpa.service.impl.$DeleteManager1431996488.delete(Unknown
 Source)[131:test-jpa-service:1.0.0.SNAPSHOT]
                at 
com.dutertry.test.karaf.jpa.service.impl.TestServiceImpl.delete(TestServiceImpl.java:53)[131:test-jpa-service:1.0.0.SNAPSHOT]
                at Proxy77c92452_69bd_43a7_b242_ba213735af8a.delete(Unknown 
Source)[:]
                at 
com.dutertry.test.karaf.jpa.cmd.DeletePersonCommand.execute(DeletePersonCommand.java:30)[128:test-jpa-cmd:1.0.0.SNAPSHOT]
                at 
org.apache.karaf.shell.impl.action.command.ActionCommand.execute(ActionCommand.java:83)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:67)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.karaf.shell.impl.console.osgi.secured.SecuredCommand.execute(SecuredCommand.java:87)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:480)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:406)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.Closure.execute(Closure.java:182)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.Closure.execute(Closure.java:119)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:94)[44:org.apache.karaf.shell.core:4.0.4]
                at 
org.apache.karaf.shell.impl.console.ConsoleSessionImpl.run(ConsoleSessionImpl.java:270)[44:org.apache.karaf.shell.core:4.0.4]
                at java.lang.Thread.run(Thread.java:745)[:1.7.0_67]

Regards,
--
Nicolas Dutertry
Sopra HR Software - http://www.soprahr.com/




--
--
Christian Schneider
http://www.liquid-reality.de<https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.liquid-reality.de>

Open Source Architect
http://www.talend.com<https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.talend.com>




--

Christian Schneider

http://www.liquid-reality.de



Open Source Architect

http://www.talend.com

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