Hello,
I have a service, using Hibernate 3.2, that runs under Tomcat 5.5
without any problems. However, when I try to deploy the same service to
a Weblogic 9.x instance, I get the following errors:
Caused by: java.lang.LinkageError: Class org/xml/sax/EntityResolver
violates loader constraints
at org.dom4j.io.SAXReader.read(SAXReader.java:447)
at
org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1366)
at
org.hibernate.cfg.Configuration.configure(Configuration.java:1310)
...
My service uses Hibernate 3.2 with the requisite TCCL set to "composite"
in my services.xml. This allows my Hibernate configuration to load
successfully under Tomcat.
Since I am attempting to deploy to Weblogic, I have also set my
container to prefer classes in WEB-INF by specifying the appropriate
settings in my deployment descriptor as follows:
<weblogic-web-app
xmlns="http://www.bea.com/ns/weblogic/90";
xmlns:j2ee="http://java.sun.com/xml/ns/j2ee";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://www.bea.com/ns/weblogic/90
http://www.bea.com/ns/weblogic/90/weblogic-web-app.xsd";>
<container-descriptor>
<prefer-web-inf-classes>true</prefer-web-inf-classes>
</container-descriptor>
</weblogic-web-app>
I am not clear on how to get around this. Has anyone else run into this
problem? I am pretty much at a loss here.
Thanks,
Alejandro
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