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https://issues.apache.org/jira/browse/GERONIMO-4468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12664448#action_12664448
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Ivan commented on GERONIMO-4468:
--------------------------------
Another reason is that we may need it to build the tempclassloader, by default,
only those jars in the lib directory will be added to the classloader of that
ear. Or we will encounter the issue mentioned by Janko, not all the entity
classes are found.
Thanks for giving a comment ! Wish I do not make a mistake :-)
> <jar-file> elements are interpreted relatively to EAR root
> ----------------------------------------------------------
>
> Key: GERONIMO-4468
> URL: https://issues.apache.org/jira/browse/GERONIMO-4468
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Affects Versions: 2.1.3
> Reporter: Janko Heilgeist
> Assignee: Ivan
> Attachments: Geronimo-4468-01.patch, Geronimo-4468.patch,
> geronimo-jarfile.tar.gz, my-ear-1.0-SNAPSHOT.ear
>
>
> The <jar-file> elements in a persistence.xml are wrongly interpreted as
> relative to the EAR's root.
> EJB 3.0 persistence spec, section 6.2:
> {quote}
> [...] A persistence unit is defined by a persistence.xml file. The jar file
> or directory whose META-INF directory contains the persistence.xml file is
> termed the root of the persistence unit. [...]
> {quote}
> EJB 3.0 persistence spec, section 6.2:
> {quote}
> One or more JAR files may be specified using the jar-file elements [...] Such
> JAR files are specified relative to the root of the persistence unit [...].
> {quote}
> The attached EAR is correctly verified by the Glassfish verifier. Deploying
> it on Geronimo 2.1.3 or 2.2-SNAPSHOT results in a successful deployment,
> while on the console OpenJPA throws exceptions because it tries to resolve
> the jar-file paths relative to the EAR's root:
> {quote}
> <openjpa-1.0.3-r420667:677674 nonfatal general error>
> org.apache.openjpa.persistence.PersistenceException:
> $HOME/geronimo-tomcat6-javaee5-2.1.3/repository/com/heilgeist/testcase/geronimo/jarfile/my-ear/1.0-SNAPSHOT/my-ear-1.0-SNAPSHOT.ear/my-entities1-1.0-SNAPSHOT.jar
> (No such file or directory)
> <openjpa-1.2.0-r422266:683325 nonfatal general error>
> org.apache.openjpa.persistence.PersistenceException:
> $HOME/geronimo-tomcat6-javaee5-2.2-SNAPSHOT/repository/com/heilgeist/testcase/geronimo/jarfile/my-ear/1.0-SNAPSHOT/my-entities2-1.0-SNAPSHOT.jar
> (No such file or directory)
> {quote}
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