Problem getting Dataservices running on OC4J 10.1.3.1

[Former Community Member]

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...