Changing Weblogic Configuration to use newer version of JDK

1. Backup the following files

ADMIN SERVER DOMAIN FOLDER:

$WLSDOMAIN/<<DOMAIN NAME>>/bin/setDomainEnv.sh (WHERE THE ORIGINAL OR MASTER COPY OF ADMIN SERVER DOMAIN FOLDER IS LOCATED) - typicall shared storage.

MANAGED SERVER DOMAIN FOLDER:

$MWHOME/admin/<<DOMAIN NAME>>/mserver/<<DOMAIN NAME>>/bin/setDomainEnv.sh (On all nodes viz node1,2,3 & 4)

$WLSHOME/common/bin/commEnv.sh (On  all nodes viz node1,2,3 & 4)

 2. Edit setDomainEnv.sh file

The setDomainEnv script is located in the bin subdirectory of the domain’s root directory.

$WLSDOMAIN/<<DOMAIN NAME>>/bin/setDomainEnv.sh (from any one node)

$MWHOME/admin/<<DOMAIN NAME>>/mserver/<<DOMAIN NAME>>/bin/setDomainEnv.sh (On all nodes viz node1,2,3 & 4)

The first code snippet shows the initial existing settings in bold  for older version of JDK:

SUN_JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_24"

export SUN_JAVA_HOME

if [ "${JAVA_VENDOR}" = "Oracle" ] ; then

                JAVA_HOME="${BEA_JAVA_HOME}"

                export JAVA_HOME

else

                if [ "${JAVA_VENDOR}" = "Sun" ] ; then

                                JAVA_HOME="${SUN_JAVA_HOME}"

                                export JAVA_HOME

                else

                                JAVA_VENDOR="Sun"

                                export JAVA_VENDOR

                                JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_24"

                                export JAVA_HOME

                fi

fi

The second code snippet shows the changes, in bold, made to switch to newer version:

SUN_JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_39"

export SUN_JAVA_HOME

if [ "${JAVA_VENDOR}" = "Oracle" ] ; then

                JAVA_HOME="${BEA_JAVA_HOME}"

                export JAVA_HOME

else

                if [ "${JAVA_VENDOR}" = "Sun" ] ; then

                                JAVA_HOME="${SUN_JAVA_HOME}"

                                export JAVA_HOME

                else

                                JAVA_VENDOR="Sun"

                                export JAVA_VENDOR

                                JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_39"

                                export JAVA_HOME

                fi

fi

3. The following two code snippets show the switching of the default JDK from Older to newer version of JDK in commEnv.sh.

$WLSHOME/common/bin/commEnv.sh (On  all nodes viz node1,2,3 & 4)

The first code snippet shows the initial existing settings of older version of JDK:

# Reset JAVA_HOME, JAVA_VENDOR and PRODUCTION_MODE unless JAVA_HOME

# and JAVA_VENDOR are pre-defined.

if [ -z "${JAVA_HOME}" -o -z "${JAVA_VENDOR}" ]; then

  # Set up JAVA HOME

  JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_24"

  # Set up JAVA VENDOR, possible values are

  #Oracle, HP, IBM, Sun ...

  JAVA_VENDOR=Sun

  # PRODUCTION_MODE, default to the development mode

  PRODUCTION_MODE=""

fi

The second code snippet shows the changes, in bold, made to switch to newer version:

# Reset JAVA_HOME, JAVA_VENDOR and PRODUCTION_MODE unless JAVA_HOME

# and JAVA_VENDOR are pre-defined.

if [ -z "${JAVA_HOME}" -o -z "${JAVA_VENDOR}" ]; then

  # Set up JAVA HOME

  JAVA_HOME="/reuters/oracle/product/soa/11g/fmw/jdk1.6.0_39"

  # Set up JAVA VENDOR, possible values are

  #Oracle, HP, IBM, Sun ...

  JAVA_VENDOR=Sun

  # PRODUCTION_MODE, default to the development mode

  PRODUCTION_MODE=""

fi

4. CHANGE THE JAVA_HOME VALUE TO LATEST ONE IN .PROFILE FILE

5. LOGIN TO PUTTY WITH A NEW SESSION AND VALIDATE IF THE JDK VERSION IS LATEST or not by running java -version command.

cheers