How to Upgrade the JDK Used by Oracle WebLogic Server 11g to a Different Version Step by Step.

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Hi All,
       
   We have upgraded JDK    From jdk1.6.0_45  10.3.6.0  To jdk1.6.0_19  on  WebLogic Server 10.3.6.0. Kindly go through the below steps to perform on Web logic.

Step 1:     Bring down All the services of weblogic server.
                Bring Down All Managed server ,Admin server  and Node manager .(Stop opmn services)
Step 2.     Take a backup of weblogic server. (Parent directory backup)
               nohup tar -cvzf Middleware.gz Middleware &

Step 3.  Download Patch 27411678: Oracle JRE 6 Update 191.

Step 4. Unzip the patch on different directory location  (temporary location)

 Step 5.  Go to parent directory of Existing JDK directory on server.
                
               example.   jdk160_18
               Move exising directory  as org.

              mv  jdk160_18 jdk160_18.org

Step6.   Now install the new JDK version in a temporary location and then copy to the original one
            
                       ./jre-6u191-linux-x64.bin
             
This installation will create new JDK directory . Now move this new directory to original directory location( Location Where we renamed original jdk)

 Step 7.   Change the JAVA_HOME path in below file to get this affected as soon as. take backup before changing the file .

 INSTALL_HOME- This is nothing but parent directory of web logic server. eg. Middleware 

Where you need to change location [ Follow below method to get this done]
 
1. Nodemanager.
javaHome=/o003/home/oracle/product/jdk1.6.0_45   jdk1.6.0_191
JavaHome=/o003/home/oracle/product/jdk1.6.0_45/jre

NativeVersionEnabled=FALSE    --change this parameter as well in same file
2. setDomainEnv.sh

3.
/o003/home/oracle/product/Middleware/wlserver_10.3/common/bin
grep -i JAVA_HOME commEnv.sh

4.
bsu.jar  bsu.sh  cache_dir  patch-client.jar  smartupdate.ico
[oracle@arctic bsu]$ grep -i JAVA_HOME bsu.sh
JAVA_HOME="/o003/home/oracle/product/jdk1.6.0_45"
"$JAVA_HOME/bin/java" ${MEM_ARGS} -jar patch-client.jar $*
[oracle@arctic bsu]$ pwd
/o003/home/oracle/product/Middleware/utils/bsu
[oracle@arctic bsu]$


5.

[oracle@arctic quickstart]$ ls
images  libjni.so  quickstart.jar  quickstart.sh
[oracle@arctic quickstart]$ grep -i JAVA_HOME quickstart.sh
JAVA_HOME="/o003/home/oracle/product/jdk1.6.0_45"
"${JAVA_HOME}/bin/java" ${JAVA_VM} -Djava.library.path="${BEAHOME}/utils/uninstall" -jar "${BEAHOME}/utils/quickstart/quickstart.jar" $*
[oracle@arctic quickstart]$ pwd
/o003/home/oracle/product/Middleware/utils/quickstart
[oracle@arctic quickstart]$


6.


[oracle@arctic uninstall]$  grep -i JAVA_HOME uninstall.sh
JAVA_HOME="/o003/home/oracle/product/jdk1.6.0_45"
"${JAVA_HOME}/bin/java" ${JAVA_VM} -Xmx256m -Djava.library.path="${BEAHOME}/utils/uninstall" -Dhome.dir="${BEAHOME}" -Dinstall.dir="${WL_HOME}" -jar "${BEAHOME}/utils/uninstall/uninstall.jar" $*
[oracle@arctic uninstall]$ pwd
/o003/home/oracle/product/Middleware/utils/uninstall
[oracle@arctic uninstall]$

7.

[oracle@arctic wlserver_10.3]$ ls -a .product.properties
.product.properties
[oracle@arctic wlserver_10.3]$ pwd
/o003/home/oracle/product/Middleware/wlserver_10.3
[oracle@arctic wlserver_10.3]$ grep -i JAVA_HOME .product.properties
JAVA_HOME=/o003/home/oracle/product/jdk1.6.0_45
WLS_JAVA_HOME=/o003/home/oracle/product/jdk1.6.0_45
[oracle@arctic wlserver_10.3]$

            


            
$INSTALL_HOME/wlserver_10.3/common/bin/commEnv.sh
$INSTALL_HOME/user_projects/domains/<mydomain>/bin/setDomainEnv.sh

$INSTALL_HOME/wlserver_10.3/common/nodemanager/nodemanager.properties

$INSTALL_HOME/utils/bsu/bsu.sh 

$INSTALL_HOME/utils/quickstart/quickstart.sh

$INSTALL_HOME/utils/uninstall/uninstall.sh

$INSTALL_HOME/wlserver_10.3/.product.properties 




 Also change NativeVersionEnabled=false  in nodemanages.properties file.


Step 8. Check the installed JDK Version now. 
          

$INSTALL_HOME/jdk160_18/bin/java -fullversion


          

 Start the processes as normal, they should take the new JDK version.

oracle@atlanticbin]$cd /o003/home/oracle/product//Middleware/wlserver_10.3/server/bin/
[oracle@atlanticbin]$./setWLSEnv.sh

[oracle@atlanticbin]$nohupsh startNodeManager.sh >nodemanager_31July.log &
[oracle@atlantic bin]/o003/home/oracle/product/Middleware/user_projects/domains/FRHDomain/bin

[oracle@atlanticbin]./setDomainEnv.sh
[oracle@atlanticbin]nohupsh startWebLogic.sh >startWebLogic31July.log &
[oracle@atlanticbin][oracle@arctic bin]$ nohupsh startManagedWebLogic.sh WLS_REPORTS > startManagedWebLogic_11Feb.log &
[oracle@arcticbin]$ cd /o003/home/oracle/product/Middleware/asinst_1/bin
[oracle@arcticbin]$ ./opmnctl status
opmnctl status: opmn is not running.
[oracle@arcticbin]$ ./opmnctlstartall
[oracle@arcticbin]$ ./opmnctl status

You can follow above steps in your environment.


Thanks and Regards

Amar Jadhav  

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