`java.lang.UnsupportedClassVersionError`

[TheProdigyLeague]

What happened?

1. IBurpExtender not supported in Crostini
2. Java Runtime (class file version 65.0)
3. Internal loaders built-in on PATH

Steps to reproduce

1. Install Crostini Byra Chromebook (Omnigul with DBus transporters)
2. Install Burp Suite (Java) with Jython extensions (Extender)
3. Set Java class file explicitly to version 65.0

Context

Running org.python.util's with burpsuite_community and jython.sdk (IBurpExtender) compiled from source with environment variables set.