Deployment Problem "Exit status of DCM servlet client: -1"

Question

I had a "Exit status of DCM servlet client: -1" problem at deployment, which is not yet reported.
Deployment from Jdeveloper 10.1.3.0.4.3673 to Application server 10.1.2.0.2 on Windows 2003 Server works on "home" OC4J but not on newly created OC4J instance. After comparing the two instances, I found the difference in the application.xml file. The Runtime Installer adds a list of library path statements at the end of this file:
<library path="../../../jlib/commons-el.jar"/>
<library path="../../../jlib/oracle-el.jar"/>
When I add these statements to the application.xml file of the newly created OC4J instance, the deployment works.

Answer 1

From the App Server oracle home, and with the same connection information as app is using, can you connect to 8.1.6 db with sqlplus?
You said it works from JDeveloper - which version?
From AS 10.1.2 (which means net/client libraries 10.1.0.3) I get
"ORA-03134: Connections to this server version are no longer supported."
To 8.1.7.4 database connection succeeds. (hint: 8.1.6 is not supported!)
Maybe this could be the culprit?