Running JAXB2 in a 10g Database

Question

Hi All,
We have some java business logic which uses JAXB2. We now would like to be able to call / store this java code inside the database. It's a 10g database, which I understand has the 1.4 JVM, so I've retrotranslated the code (and the JAXB2 dependencies) and created a compatible jar. The loadjava command^1^ completes successfully, however when I try and execute the code which unmarshals the XML, I get the following error: Caused by: java.lang.RuntimeException: Provider com.sun.xml.bind.v2.ContextFactory could not be instantiated: javax.xml.bind.JAXBException: Provider com.sun.xml.bind.v2.ContextFactory not found
The ContextFactory is definitely in the jar file. Looking through the generated DB trace file I see the following:
creating : class com/sun/xml/bind/v2/ContextFactory with resolver ((* london) (* PUBLIC) (org/apache/* -) (jp/gr/xml/relax/* -) (com/bea/* -) (javax/management/* -) (com/thoughtworks/xstream/* -) (org/jvnet/* -) (com/sun/xml/fastinfoset/* -) (sun/misc/* -))
but then, instead of resolving the class:
skipping : class com/sun/xml/bind/v2/ContextFactory
Why would the ContextFactory be skipped? Is there any way I can force the loadjava command to resolve it?
1. The server-side loadJava command I use is: call sys.dbms_java.loadjava( '-force -verbose -resolve /scripts/p3/db_sql/cta23001.jar','((* london) (* PUBLIC) (org/apache/* -) (jp/gr/xml/relax/* -) (com/bea/* -) (javax/management/* -) (com/thoughtworks/xstream/* -) (org/jvnet/* -) (com/sun/xml/fastinfoset/* -) (sun/misc/* -))' );

Answer 1

Hi:
You can find Jaxb related classes implemented by Oracle into ${ORACLE_HOME}/lib/xml.jar but not all classes should be installed, please look at Ant task named unpack-jaxb-classes at:
[http://dbprism.cvs.sourceforge.net/viewvc/dbprism/cms-2.1/tasks/cms.xml?revision=1.19&view=markup]
this Ant task extract all Jaxb required classes which can be installed into an Oracle 10g/11g database, see the Task pre-install which install this jar into SYS's schema.
To see how to use Jaxb marshall/unmarshall operation please take a look at the method processRequestAction, inside the code you can see how to instantiate the marshaller and unmarshaller:
[http://dbprism.cvs.sourceforge.net/viewvc/dbprism/cms-2.1/src/com/prism/cms/action/Controller.java?revision=1.8&view=markup]
Best regards, Marcelo.