We in the process of dealing with Java 11 and JavaLoader related issues (JavaLoader no longer works because CORBA deprecated in Java 11).
In the p740 branch on GitHub JavaLoader has been removed and has been replaced with calls to creating normal Java objects, and the java.net.InetAddress hostname lookups in the Application.cfc have also been removed.
Here’s the list of tickets completed so far;
https://farcry.jira.com/projects/FC/versions/15004/tab/release-report-all-issues
Can you give the p740 branch a try and see if it solves the problems you currently have, and if not perhaps provide more details (with stack traces if possible) so that I can see if we’re able to address them?