Upgrade from JON 3.0.1 to 3.1.0 fails java.lang.UnsatisfiedLinkError:wrong ELF class: ELFCLASS64 for OCI drivers

Issue

Upgrading from JON 3.0.1 to 3.1.0 but it fails. We updated / copied the oracle db values in rhq-server.properties and added JAVA_HOME and OCI values to rhq-server.sh.
The jboss instance starts up and shows the home screen. If I click on "installation" it fails. It complains about ELF (wrong architecture) , but everything is the correct Architecture (x86_64)
It mainly complains about OCI, but the older versions like 3.0.1 never did that. (that means oci and jon worked like a charm)

Log snippet

2012-06-21 19:33:04,164 ERROR [org.apache.catalina.core.ContainerBase] Servlet.service() for servlet Faces Servlet threw exception
java.lang.UnsatisfiedLinkError: /oracleuser/oracle/instantclient_11_2/libocijdbc11.so: /oracleuser/oracle/instantclient_11_2/libocijdbc11.so: wrong ELF class: ELFCLASS64 (Possible cause: architecture word width mismatch)
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1807)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1732)
    at java.lang.Runtime.loadLibrary0(Runtime.java:823)
    at java.lang.System.loadLibrary(System.java:1028)
    at oracle.jdbc.driver.T2CConnection$1.run(T2CConnection.java:3551)
    at java.security.AccessController.doPrivileged(Native Method)
    at oracle.jdbc.driver.T2CConnection.loadNativeLibrary(T2CConnection.java:3547)
    at oracle.jdbc.driver.T2CConnection.logon(T2CConnection.java:266)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
    at oracle.jdbc.driver.T2CConnection.<init>(T2CConnection.java:162)
    at oracle.jdbc.driver.T2CDriverExtension.getConnection(T2CDriverExtension.java:53)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at org.rhq.core.db.DbUtil.getConnection(DbUtil.java:60)