According the “officially” supported environments page maintained by Microfocus and found here: https://admhelp.microfocus.com/documents/alm/alm-system-requirements/alm-qc-system-requirements.htm
The only officially supported JAVA version is version 8. No other version is recommended or supported (unless it is part of the installer as it was prior to 12.6x). What the “officially supported” part means is that you will get no support or assistance from Microfocus if you are using a version different than what the application is certified to work with. They will require you to install JAVA 8 before they can assist as the issues being experienced haven’t been tested against any other version so they can guarantee the validity of the results.
Hope this clarifies things some,