Debugging SOAP webservice calls using CXF generated stubs in Java gives SSL Exceptions for some people
Solution 1:
We did a lot of extra research, also using Wireshark and we saw the RST but could not find a solution.
Until we saw that the working machines used JDK 11.0.5 and the failing machines use JDK 11.0.2. Upgrading to 11.0.5+ (11.0.14) solved our problem. The specific fix or change in the JDK subversion remains unknown.