Bug#892760: Pending fixes for bugs in the antlr3 package

[pkg-java-maintainers]

tag 892760 + pending
thanks

Some bugs in the antlr3 package are closed in revision
1db6ad90371aab09110b44ce94b6c2ad3b3043f8 in branch 'master' by Markus
Koschany

The full diff can be seen at
https://anonscm.debian.org/cgit/pkg-java/antlr3.git/commit/?id=1db6ad9

Commit message:

    Fix FTBFS with Java 9.
    
    Thanks: Tiago Stürmer Daitx for the patch.
    Closes: #892760