Java Upgrades
In 12.5(1), after the initial release, CCE transitioned from Oracle to OpenJDK for the Java runtime environment. Newer installs and upgrades with 12.5(1a) base installer run with OpenJDK JRE while the older installs and upgrades with 12.5(1) base run with Oracle JRE. Existing 12.5(1) deployments will transition to OpenJDK with 12.5(1) ES55, which in turn is a mandatory prerequisite for receiving further maintenance patches on CCE.
During installations and upgrades, Unified CCE installs the base required Java version.
Before updating the Java Runtime Environment (JRE):
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Run the command at the command prompt: cd %CCE_JAVA_HOME%\bin.
Important
Use JAVA_HOME if you are employing Oracle JRE.
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Export the certificates of all the components imported into the truststore.
The command to export the certificates is keytool -export -keystore <JRE path>\lib\security\cacerts -alias <alias of the component> -file <filepath>.cer -
Enter the truststore password when prompted.
You can apply Java updates to your contact center as follows:
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You can apply Java updates for the latest 32-bit Java 8 minor version.
For the most current Java support information, see the Contact Center Enterprise Compatibility Matrix at https://www.cisco.com/c/en/us/support/customer-collaboration/unified-contact-center-enterprise/products-device-support-tables-list.html.
You can download and install the Oracle Java updates from the Oracle website and the OpenJDK Java updates from the OpenLogic website.
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Modify the Windows CCE_JAVA_HOME1 environment variable to point to the new OpenJDK Java Runtime Environment (JRE) location if it has changed.
After updating the OpenJDK Java Runtime Environment (JRE):
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Run the command at the command prompt: cd %CCE_JAVA_HOME%\bin.
Important
Use JAVA_HOME if you are employing Oracle JRE.
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Import the certificates for all the components that you previously exported from the truststore before you updated the JRE.
The command to import certificates is keytool -import -keystore <JRE path>\lib\security\cacerts -file <filepath>.cer -alias <alias>. -
Enter the truststore password when prompted.
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Enter 'yes' when prompted to trust the certificate.