Fixes #923.  Cannot run bundle install using Java 9 or later.
Fixes #923.  Cannot run bundle install using Java 9 or later.

This is no guarantee but should generally work for any install of jruby EXCEPT
for jruby-complete.jar runs itself.  That is a tougher problem but hopefully we
do not have many people hacking on arjdbc from jruby-complete so this should be
good enough.

kares/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter,kares/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter,kares/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter