Comment 8 for bug 1822839

I don't have control over what the OpenJDK packages in Debian/Ubuntu are using as a vendor name, but here is some related info:

Possible vendor strings for the Debian/Ubuntu OpenJDK builds are now "Debian", "Ubuntu", and "Private Build", the latter trying to identify a PPA build according to the version number.

$ java -XshowSettings -version 2>&1 | grep vendor
    java.specification.vendor = Oracle Corporation
    java.vendor = Ubuntu
    java.vendor.url = https://ubuntu.com/
    java.vendor.url.bug = https://bugs.launchpad.net/ubuntu/+source/openjdk-lts
    java.vm.specification.vendor = Oracle Corporation
    java.vm.vendor = Ubuntu