To change the JRE package:

1. Do one of the following:
   • UNIX: Define an alternative Java home directory with the parameter BMC_JAVA_HOME located in the .cshrc file.

   EXAMPLE: setenv BMC_JAVA_HOME /usr/new_JRE

   • Windows: Define an alternative Java home directory with the parameter BMC_JAVA_HOME in system environment variables.

   EXAMPLE: BMC_JAVA_HOME C:\new_JRE

   NOTE: (Windows only)If the BMC_JAVA_HOME parameter is defined after an upgrade, then you must delete the defined parameter before downgrading Control-M/Server.

2. Recycle Control-M/Server.

To change the JRE package:

• Do one of the following:
  • Define an alternative Java home directory by adding the parameter BMC_JAVA_HOME and define the <JRE Home path> located in the CONFIG.dat file (UNIX) or in the CONFIG table in the Windows registry (Windows).
  • For Control-M/Agents version 9.0.20.00 and newer > From the CCM, define the AG_JAVA_HOME parameter with the new JRE path, as described below: From the Home tab, select one or more Control-M/Agent components, and in the Definitions group, click System Parameters.

 

The Control-M/Agent - System Parameters dialog box appears.

NOTE: If you selected multiple Control-M/Agents, parameter changes are applied to all selected Control-M/Agents (Control-M/Agent 9.0.00 and higher).

1. From the system parameters table, filter for the required parameter from one of the following column headings:
   • Category
   • Name
   • Description
   • Value
   • Default Value
2. Double-click the required parameter.

   The Update System Parameter dialog box appears.

3. In the Value field, change the value of the parameter, as required, and then click Save.
4. Click Close.

   The Control-M/Agent system parameter is defined.

To change the JRE package:

1. Do one of the following:
   • UNIX: Do the following:
     1. Create the em_env_local.sh file in the $EM_HOME/etc/directory
     2. Define an alternative Java home directory by adding the parameter BMC_JAVA_HOME to the file em_env_local.sh that is located in the $EM_HOME/etc/directory.
     3. Insert the following lines to the file under the line: ############ A D D I T I O N ##############:

        BMC_JAVA_HOME={new JRE Path}
export BMC_JAVA_HOME
CUR_BMC_JAVA_HOME=$BMC_JAVA_HOME
export CUR_BMC_JAVA_HOME
if [ -z "$LD_LIBRARY_PATH" ]; then
LD_LIBRARY_PATH="./:/usr/openwin/lib:$EM_HOME/lib:/usr/local/lib:/usr/lib:$CUR_BMC_JAVA_HOME/lib/amd64/server"
else
LD_LIBRARY_PATH="./:/usr/openwin/lib:$EM_HOME/lib:/usr/local/lib:/usr/lib:$CUR_BMC_JAVA_HOME/lib/amd64/server:${LD_LIBRARY_PATH}"
fi
if [ -n "${LD_LIBRARY_PATH_64:-""}" ]; then
LD_LIBRARY_PATH_64=${LD_LIBRARY_PATH}:${LD_LIBRARY_PATH_64}
else
LD_LIBRARY_PATH_64=${LD_LIBRARY_PATH}
fi
export LD_LIBRARY_PATH
export LD_LIBRARY_PATH_64

   • Windows: Do the following:
     1. Create the environment variable BMC_JAVA_HOME and set its value to the location of the new JRE.
     2. Add %BMC_JAVA_HOME%\bin\server to the beginning of your PATH system environment variable.
2. Copy the following jar files from {Installation CD Image}\Setup_files\3RD\JRE_libs or from <HOME>/ctm_em/JRE/lib/ext to {BMC_JAVA_HOME}\lib\ext: otherwise the GCS (Global Condition Server) will not start.
   • bc-fips-1.0.1.jar
   • bcmail-fips-1.0.1.jar
   • bcpg-fips-1.0.1.jar
   • bcpkix-fips-1.0.1.jar
3. Just as info, instead of using the /etc/alternatives/jre use the /usr/lib/jvm/jre/
4. Recycle Control-M/EM components.

Note: 
1. When specifying a new external JRE path, select a soft link rather than a hard path to the JRE in case a newer version becomes available in the future that will obsolete the current version.
If the JRE is supported through your system admin then select a soft path that will automatically be repointed when the system JRE is updated. For example, the system support JRE will be referenced through /etc/alternatives/jre soft link.