Critical problem: XMLParseException in oc4j

While deploying a COTS product in OC4J we have encountered the following XMLParseException:
oracle.xml.parser.v2.XMLParseException: Namespace prefix 'xdsig' used but not declared.
     at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:205)
     at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:270)
     at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:147)
     at oracle.xml.jaxp.JXDocumentBuilder.parse(JXDocumentBuilder.java:150)
     at de.bos_bremen.osci.oscar.services.Tools.a(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.database.sql.SqlPersistenz.a(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.IntermedAPI.createResponse2SchedulerListCollOrder(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.ProcessMsg.processCollection(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.ProcessMsg.processMsg(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.ProcessMsg.processMsg(Unknown Source)
     at de.bos_bremen.osci.oscar.intermed.Entry.receiveMessage(Unknown Source)
     at java.lang.reflect.Method.invoke(Native Method)
     at de.bos_bremen.osci.oscar.server.SOAPEntry.invokeMethod(Unknown Source)
     at de.bos_bremen.osci.oscar.server.SOAPEntry.doPost(Unknown Source)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:721)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
     at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
     at java.lang.Thread.run(Thread.java:479)
Our interpretation is that the Oracle XML Parser embedded in OC4J does not know the XML Digital Signature Schema Definition. We can't modify the COTS product to circumvent the problem, so we have to find another solution, e.g.
a) extend the Oracle XML parser so that it is able to validate xdsig, xmlenc schema definitions
b) use another XML parser instead of Oracle (which is, as far as we know, possible but currently not supported).
For our project, the COTS product we try to deploy contains critical functionality. We have to find a solution, since the only fallback would be to use another servlet engine (e.g. Tomcat) or J2EE product!
Can anyone help?
Yours,
S.Knopp
R.Heinrichs
CSC

Good news: the problem was solved by the third party product provider. Obviously the Oracle XML Parser is more restrictive regarding namespace registration than Xerces. The now implemented fix runs with both Xerces and Oracle.

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4- Which command do you use to launch OC4J ?
Then, check with the README file that comes with OC4J
to see if all the requirements have been respected.
Hope this will help you.
Steff

Critical problem: XMLParseException in oc4j

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