Migration problems from Oracle 10gAS R1-R2.

Question

We moved from Oracle 10gAS R1 to 10gAS R2. So i had to re-compile my code in Oracle forms to deploy them. I was successful in moving all files except for one.WHenever i try to run this file (after compilation in R2) i am receiving the foll error.
I checked the whole code in that file, it has no refernce to the old servers..everything was updated. I am sure this error is due to the file and nothing related to my configuration files in the AS. This is because other forms (using webutil) works fine except for this form. How do i get around this, the logs and error messages dont really help.
6/05/25 16:29:12 formsweb: Forms session <103> aborted: unable to communicate with runtime process.
06/05/25 16:29:12 formsweb: Forms session <103> exception stack trace:
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)
at java.io.BufferedInputStream.read(BufferedInputStream.java:201)
at java.io.DataInputStream.readLine(DataInputStream.java:562)
at oracle.forms.net.HTTPHeaderTool.parseResponseHeader(Unknown Source)
at oracle.forms.servlet.ListenerServlet.forwardResponseFromRunform(Unknown Source)
at oracle.forms.servlet.ListenerServlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:824)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:534)

Answer 1

Hi,
I have a similiar problem here while migrating from jboss 3.04 to oc4j 9.0.4. I get the same error message: invalid column identifier.
What do I have?
A small web application with jsp and struts, some session beans, some entity beans with relations, some finder methods (EJB-QL), separate FK-classes, CMP and CMR.
I checked all my identifiers and they are correct. Now I tracked down the problem to the following:
When I deploy the ear file to oc4j, then the container takes my orion-ejb-jar.xml and generates its own one for runtime. In this generated new file you can see the queries (select statements) which the container will use. Unfortunately, some of these selects use a WRONG identifier...
Let's say a field is named "homeStation_implName". Then you find two occurences of this field name in a select: one is correct with "homeStation_implName", but the other one is WRONG with "homeStation_".
And that's what causes the "invalid column identifier" error message.
As a workaround, I tried to modify the generated orion-ejb-jar.xml to use consistently the field name "homeStation_". But after restarting the server, my modificatons are gone again...
Do you have any idea, what problem this could be?
Any workaround I could use?
Thanks,
Torsten