SRDemo in portlet on App Server 10.1.2

Question

Is it possible to deploy the SRDemo tutorial app within a portlet on Application Server 10.1.2? I've tried to do this, but get errors when I try and register the portlet provider. So far I have:
- installed wsrp containers to the app server
- changed DataModel and UserInterface J2SE from version 1.5.0_06 to User 1.4.2_06
- removed all attributes from web-app tag in web.xml
- replaced jsp:output tag with jsp:text tag in all jspx pages
- deployed the web-app to the server
This all runs fine. The problem comes when trying to register it within a portlet. I've followed the instructions in the owcs_10132_cm_jsf_bridge.pdf document, but when I try to register the provider I get the following error:
An error occurred during the call to the WSRP Provider: java.rmi.RemoteException: Runtime exception; nested exception is:
deserialization error: deserialization error: XML parsing error: com.sun.xml.rpc.sp.ParseException:1: com.sun.xml.rpc.sp/Illegal Namespace prefix: xml
com.sun.xml.rpc.encoding.DeserializationException: deserialization error: deserialization error: XML parsing error: com.sun.xml.rpc.sp.ParseException:1: com.sun.xml.rpc.sp/Illegal Namespace prefix: xml
com.sun.xml.rpc.encoding.DeserializationException: deserialization error: XML parsing error: com.sun.xml.rpc.sp.ParseException:1: com.sun.xml.rpc.sp/Illegal Namespace prefix: xml
com.sun.xml.rpc.streaming.XMLReaderException: XML parsing error: com.sun.xml.rpc.sp.ParseException:1: com.sun.xml.rpc.sp/Illegal Namespace prefix: xml
Java stack trace from root exception:
com.sun.xml.rpc.sp.ParseException:1: com.sun.xml.rpc.sp/Illegal Namespace prefix: xml
at com.sun.xml.rpc.sp.Parser2.fatal(Parser2.java:2015)
Does anyone have any idea what the problem here is?
What may be a connected question, is how can I tell what servlet / JSP version an application is, and what do I need to change to convert between 2.4/2.0 and 2.3/1.2.
Thanks,
Barney

Answer 1

It doesn't seem to matter what application I try to deploy, I get the same results, it appears to be more to do with the ADF runtime installation. I can reproduce this now with the following:
Environment:
JDeveloper Studio Edition 10.1.3.2.0.4066
JDeveloper projects configured to use J2SE 1.4.2_06
Oracle Application Server 10.1.2.0.2
Oracle Portal 10.1.4
Steps:
1. Create new OC4J Instance WSRP_01
2. Install wsrp-install.jar
3. Install ADF Runtime from JDeveloper to App Server / WSRP_01 instance
4. Deploy demo app - app works fine.
5. Register portlet provider - fails with "Illegal Namespace prefix: xml"
6. Create new OC4J Instance WSRP_02
7, Install wsrp-install.jar
8. Deploy demo app - deploys successfully, but fails with ClassNotFound when run (ADF runtime not installed to this instance)
9. Register portlet provider - registration successful!
10. Install ADF Runtime from JDeveloper to App Server / WSRP_02 instance
11. Deploy demo app - app works fine.
12. Register portlet provider - fails with "Illegal Namespace prefix: xml"
From watching the TCP packets to/from the server, the reason it fails in steps 5 & 12 yet succeeds in step 9 appears to be the XML returned from the getServiceDescription method of the WSRPServiceDescriptionService. In the cases where this fails, there appears to be no XML prolog in the file, and the xmlns:xml="http://www.w3.org/XML/1998/namespace" namespace declaration is explicitly added to each node that requires it. In the case where it succeeds, the file does contain an XML prolog line, and does not explicitly declare the xml namepsace.
So I'm left with the conclusion that the libraries used to generate this service description response are changed by installing the ADF runtime, and the newer versions are not compatible with the XML parser in the application server. As many other people seem to have this working, there must be some problem with the libraries I'm using, but I have no idea which ones.
XML response from step 5 (failed):
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ns0="urn:oasis:names:tc:wsrp:v1:types">
<env:Body>
<ns0:getServiceDescriptionResponse>
<ns0:requiresRegistration>true</ns0:requiresRegistration>
<ns0:offeredPortlets>
<ns0:portletHandle>E:0:default</ns0:portletHandle>
<ns0:markupTypes>
<ns0:mimeType>text/html</ns0:mimeType>
<ns0:modes>wsrp:view</ns0:modes>
<ns0:windowStates>wsrp:normal</ns0:windowStates>
<ns0:windowStates>wsrp:minimized</ns0:windowStates>
<ns0:windowStates>wsrp:maximized</ns0:windowStates>
<ns0:locales>en</ns0:locales>
</ns0:markupTypes>
<ns0:description xml:lang="en"
resourceName="urn:oracle:wsrp:portlet:0:description"
xmlns:xml="http://www.w3.org/XML/1998/namespace">
<ns0:value>ADF Tutorial Portlet</ns0:value>
</ns0:description>
<ns0:shortTitle xml:lang="en"
resourceName="urn:oracle:wsrp:portlet:0:short-title"
xmlns:xml="http://www.w3.org/XML/1998/namespace">
<ns0:value>ADFTutorialPortlet</ns0:value>
</ns0:shortTitle>
</ns0:offeredPortlets>
<ns0:requiresInitCookie>perUser</ns0:requiresInitCookie>
</ns0:getServiceDescriptionResponse>
</env:Body>
</env:Envelope>
XML response from step 9 (succeeded):
<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ns0="urn:oasis:names:tc:wsrp:v1:types">
<env:Body>
<ns0:getServiceDescriptionResponse>
<ns0:requiresRegistration>true</ns0:requiresRegistration>
<ns0:offeredPortlets>
<ns0:portletHandle>E:0:default</ns0:portletHandle>
<ns0:markupTypes>
<ns0:mimeType>text/html</ns0:mimeType>
<ns0:modes>wsrp:view</ns0:modes>
<ns0:windowStates>wsrp:normal</ns0:windowStates>
<ns0:windowStates>wsrp:minimized</ns0:windowStates>
<ns0:windowStates>wsrp:maximized</ns0:windowStates>
<ns0:locales>en</ns0:locales>
</ns0:markupTypes>
<ns0:description xml:lang="en"
resourceName="urn:oracle:wsrp:portlet:0:description">
<ns0:value>ADF Tutorial Portlet</ns0:value>
</ns0:description>
<ns0:shortTitle xml:lang="en"
resourceName="urn:oracle:wsrp:portlet:0:short-title">
<ns0:value>ADFTutorialPortlet</ns0:value>
</ns0:shortTitle>
</ns0:offeredPortlets>
<ns0:requiresInitCookie>perUser</ns0:requiresInitCookie>
</ns0:getServiceDescriptionResponse>
</env:Body>
</env:Envelope>
Cheers,
Barney