Supported Versions of Java
The supported platform database lists all supported versions of the Java Runtime Environment (JRE) for each version of PeopleTools on each supported operating system platform.
See My Oracle Support, “Platform Certifications.”
Oracle also bundles a supported JRE version with PeopleTools for all supported operating system platforms except the z/OS platform. For z/OS, you will have to install a supported JRE. To determine which JRE is bundled with your version of PeopleTools, see the README file in the PS_HOME\jre directory.