antlr incompatibility

[abendt]

hi folks,

i tried to use the gettext library in one of my projects.
This project has an existing, transitive dependency on antlr. With this i couldn't successfully integrate the lib. I get errors with the message: "Could not deserialize ATN with UUID".
It seems that the underlying issue is, that gettext brings its own version of antlr, named as a different artifact (com.tunnelvisionlabs:antlr4-runtime). So we end up having different versions of antlr to be in the classpath at the same time. I tried to use excludes/setting explicit version numbers to resolve that without success as the respective libs seem to be very sensitive to minor antlr version differences.

After some further experimentation i created a gettext fat jar that contains a shaded version of antlr. Using this i was able to use gettext in my project: https://github.com/abendt/gettext/tree/createShadowJar

would you be interested in a PR to make that change generally available?

[tomcashman]

Yep PR is welcome :-) We use com.tunnelvisionlabs:antlr4-runtime due to issue #1