Problems with the <jar-file> element in the persistence.xml

[marcos_aps]

- JBoss 4.2.0GA

Hello, everybody!
I'm having problems with the <jar-file> element of my persistence deployment
descriptor (persistence.xml). I have deployed my EJB jar file to the directory
C:\jboss-4.2.0.GA\server\default\deploy and I have placed a jar file that also
has entity beans to be analysed in the directory
C:\jboss-4.2.0.GA\server\default\lib. This file is referenced in the
persitence.xml file. But the problem is that I keep getting error messages when
I'm deploying my EJB jar file to the directory deploy. The persistence provider
can't find the jar file specified in the <jar-file> element. This was my
persistence.xml file the first time I tested it:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="laboratorio-informatica">
<jta-data-source>java:/LaboratorioInformaticaDS</jta-data-source>
<mapping-file>META-INF/orm.xml</mapping-file>
<jar-file>urca.jar</jar-file>
</persistence-unit>


and I got this error message when deploying:
java.lang.RuntimeException: error trying to scan <jar-file>: file:/C:/jboss-4.2.0.GA/bin/urca.jar

So, I kept modifying the <jar-file> element and got these results:

<jar-file>lib/urca.jar</jar-file>
java.lang.RuntimeException: error trying to scan <jar-file>: file:/C:/jboss-4.2.0.GA/bin/lib/urca.jar

<jar-file>/lib/urca.jar</jar-file>
java.lang.RuntimeException: error trying to scan <jar-file>: file:/C:/lib/urca.jar

<jar-file>../lib/urca.jar</jar-file>
java.lang.RuntimeException: error trying to scan <jar-file>: file:/C:/jboss-4.2.0.GA/server/default/deploy/lib/urca.jar

<jar-file>../server/default/lib/urca.jar</jar-file>
java.lang.RuntimeException: error trying to scan <jar-file>: file:/C:/jboss-4.2.0.GA/server/default/deploy/server/default/lib/urca.jar

So, I couldn't in any way tell the persistence provider to look the file at the
directory C:\jboss-4.2.0.GA\server\default\lib.

Please, what do I have to specify in the <jar-file> element to solve this problem?

Thank you.

Marcos

[tobias]

Please check the DTDs in the docs directory of the distribution. Also you do not want to put any such things as EJBs into any lib directory.

[marcos_aps]

"Tobias" wrote:
Please check the DTDs in the docs directory of the distribution. Also you do not want to put any such things as EJBs into any lib directory.

This file (urca.jar) is not an EJB jar file. I place my EJB jar files in the deploy directory. But the urca.jar file has some entity beans that are common to all my applications, so I thought the best place for it was in the lib directory. I don't want to specify an absolute path in the <jar-file> element and make my application non portable. What do you suggest me?

Marcos

[rob.stryker]

An entity bean is a type of enterprise java bean. I don't believe that should go in the lib folders.

[marcos_aps]

An entity bean is a type of enterprise java bean. I don't believe that should go in the lib folders.

This file (urca.jar) doesn't have only entity beans. It also has utility classes that could be used in all applications. So, where do you suggest me to place it instead of the lib directory? A place where I can point to it in the <jar-file> element. Is there a way to a jar file located in the lib directory from the <jar-file> element? That was the initial point of this discussion. If there's no way, I would be satisfied with another properly place to put the jar file that allowed me to reference it from the <jar-file>.

Marcos