Steve's Blog Technical Information on Oracle Middleware.

If you have followed doc 420303.1 to upgrade your JDBC driver and found this driver has issues where you need to apply a patch for it. You may want to follow this example to apply the one off patch.

[oracle@beast JDBC_UPGRADE]$ pwd
/home/u01/app/oracle/product/1013AS_blue/j2ee/JDBC_UPGRADE
[oracle@beast JDBC_UPGRADE]$ ll
total 104
drwxr-xr-x  2 oracle oinstall  4096 Feb 21 11:25 applib
drwxr-x---  9 oracle oinstall  4096 Feb 21 11:26 application-deployments
drwxr-xr-x  2 oracle oinstall  4096 Feb 21 11:25 applications
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 11:31 config
drwxr-xr-x  4 oracle oinstall  4096 Feb 21 11:25 connectors
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 11:26 log
-rw-r--r--  1 oracle oinstall 26445 Feb 21  2012 p13403295_10205_Generic.zip
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 11:26 persistence
drwxr-x---  3 oracle oinstall  4096 Feb 21 11:31 shared-lib
drwxr-x---  3 oracle oinstall  4096 Feb 21 11:26 tldcache
[oracle@beast JDBC_UPGRADE]$ unzip -d patches p13403295_10205_Generic.zip > /dev/null
[oracle@beast JDBC_UPGRADE]$ ll
total 112
drwxr-xr-x  2 oracle oinstall  4096 Feb 21 11:25 applib
drwxr-x---  9 oracle oinstall  4096 Feb 21 11:26 application-deployments
drwxr-xr-x  2 oracle oinstall  4096 Feb 21 11:25 applications
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 12:07 config
drwxr-xr-x  4 oracle oinstall  4096 Feb 21 11:25 connectors
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 11:26 log
-rw-r--r--  1 oracle oinstall 26445 Feb 21  2012 p13403295_10205_Generic.zip
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 12:12 patches
drwxr-xr-x  3 oracle oinstall  4096 Feb 21 11:26 persistence
drwxr-x---  3 oracle oinstall  4096 Feb 21 11:31 shared-lib
drwxr-x---  3 oracle oinstall  4096 Feb 21 11:26 tldcache
[oracle@beast JDBC_UPGRADE]$
[oracle@beast JDBC_UPGRADE]$ cd shared-lib/oracle.jdbc/10.2.0.5.0/
[oracle@beast 10.2.0.5.0]$ ll
total 1544
-rw-r-----  1 oracle oinstall 1569316 Feb 21 11:31 ojdbc14.jar
[oracle@beast 10.2.0.5.0]$ cp ojdbc14.jar ojdbc14.p13403295.jar
[oracle@beast 10.2.0.5.0]$ ll
total 3088
-rw-r-----  1 oracle oinstall 1569316 Feb 21 11:31 ojdbc14.jar
-rw-r-----  1 oracle oinstall 1569316 Feb 21 11:35 ojdbc14.p13403295.jar
[oracle@beast 10.2.0.5.0]$ jar uvf ojdbc14.p13403295.jar ../../../patches/13403295/files/jdbc/lib/ojdbc14.jar/*
adding: ../../../patches/13403295/files/jdbc/lib/ojdbc14.jar/oracle/(in = 0) (out= 0)(stored 0%)
adding: ../../../patches/13403295/files/jdbc/lib/ojdbc14.jar/oracle/net/(in = 0) (out= 0)(stored 0%)
adding: ../../../patches/13403295/files/jdbc/lib/ojdbc14.jar/oracle/net/ns/(in = 0) (out= 0)(stored 0%)
adding:
 
../../../patches/13403295/files/jdbc/lib/ojdbc14.jar/oracle/net/ns/NetException.class(in
 = 4557) (out= 1969)(deflated 56%)
[oracle@beast 10.2.0.5.0]$ ll
total 3088
-rw-r-----  1 oracle oinstall 1569316 Feb 21 11:31 ojdbc14.jar
-rw-r--r--  1 oracle oinstall 1572093 Feb 21 11:39 ojdbc14.p13403295.jar
[oracle@beast 10.2.0.5.0]$ cd ../../../config
[oracle@beast config]$ cp server.xml server.xml.old.1
[oracle@beast config]$ opmnctl stopproc process-type=JDBC_UPGRADE
opmnctl: stopping opmn managed processes...
[oracle@beast config]$ grep -l ojdbc14.jar server.xml | xargs sed -i 's/ojdbc14.jar/ojdbc14.p13403295.jar/g'
[oracle@beast config]$ opmnctl startproc process-type=JDBC_UPGRADE
opmnctl: starting opmn managed processes...
[oracle@beast config]$ cd ..
[oracle@beast JDBC_UPGRADE]$ rm p13403295_10205_Generic.zip
[oracle@beast JDBC_UPGRADE]$ 

Note: 

1. The jar command will update the driver jar with the patches. If your using another driver i.e. ojdbc5.jar, then ensure you grab the classes from the ojdbc5.jar directory i.e. ../../../patches/13403295/files/jdbc/lib/ojdbc5.jar/*

2. In server.xml we simply make the following change:

[oracle@beast config]$ diff server.xml server.xml.old.1
125c125
<               <code-source path="ojdbc14.p13403295.jar"/>
---
>               <code-source path="ojdbc14.jar"/>
[oracle@beast config]$ 

Once the oc4j instance has started up again, it will use the patched jar - ojdbc14.p13403295.jar. We can simply switch back to original if needed.