Actually test Gerrit on ubuntu1804_java11 (#333)
Actually test Gerrit on ubuntu1804_java11 (#333)

* Actually test Gerrit on ubuntu1804_java10

Closes #325.

* Fix path to Azul Zulu jvm

* Update path to JDK 11

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration