I am not happy with the concept of a build system wrapper, not to say
that I despise it. There is no reason why a single machine couldn't
have multiple versions of a build system-wide installed, and there is
no reason why each developer should download an individual copy of a
build system into the developers home directory. But here we are…
This also lifts a bunch of logic from smack-websocket-okhttp into
smack-websocket. Furthermore, the following subprojects require now
Java 11:
- smack-integration-test
- smack-omemo-signal-integration-test
- smack-repl
- smack-websocket-java11
Related tracking issue: SMACK-835