Problem getting Dataservices running on OC4J 10.1.3.1

Question

I'm having problems getting the Data services working
correctly on an Oracle OC4J 10.1.3.1
I followed the guidelines as described here:
http://www.adobe.com/support/documentation/en/flex/2/install.html#oc4j
and some of the samples seem to work, the Collaborative
Dashboard runs without any problems
But when I try to run the notes sample I get this error in
the console, each time I try to send something:
07/03/20 10:40:43 [Flex] [ERROR] Exception when invoking
service: data-service
with message: Flex Message (flex.data.messages.DataMessage)
operation = transacted
id = null
clientId = 8F4FEAF9-DF0B-9471-5406-D540F7A77B56
correlationId =
destination = notes
messageId = 2BC190CA-5B47-7BEA-7D27-6EB8494ACE96
timestamp = 1174383642959
timeToLive = 0
body =
Flex Message (flex.data.messages.DataMessage)
operation = update
id = ASObject(2709047){noteId=1}
clientId = 162E9C1C-6BBC-A27C-F756-6EB78592B81D
correlationId = 2BC190CA-5B47-7BEA-7D27-6EB8494ACE96
destination = notes
messageId = ADA188B3-8FB8-0B5A-9A44-6EB844693D12
timestamp = 0
timeToLive = 0
body =
noteText
{noteId=1, noteText=Type your notes here and share them with
other clients!},
{noteId=1, noteText=df}
hdr(DSEndpoint) = my-rtmp
exception: flex.data.DataServiceException: Unable to access
UserTransaction in DataService.
Can anyone help me with this? I tried contacting Oracle, but
they bounced the ball back to Adobe...

Answer 1

OCMS stands for Oracle Communication and Mobility Server and is basically a SIP Container embedded as a hook into OC4J 10.1.3.1. I'm using JDK 1.5.0_12-b04. Wondering if there's any other way to check configuration of the JSP compiler.
Thanks for your help,
Adam