UPDATE the workaround for opentjdk crash in travis

Author: ggarber

.travis.yml

@@ -14,8 +14,8 @@ before_script:
   - export GRADLE_OPTS=-Xmx1024m
 
 # workaround for https://github.com/travis-ci/travis-ci/issues/5227
-before_install:
-  - cat /etc/hosts # optionally check the content *before*
-  - sudo hostname "$(hostname | cut -c1-63)"
-  - sed -e "s/^\\(127\\.0\\.0\\.1.*\\)/\\1 $(hostname | cut -c1-63)/" /etc/hosts | sudo tee /etc/hosts
-  - cat /etc/hosts # optionally check the content *after*
+addons:
+  hosts:
+    - myshorthost
+  hostname: myshorthost
+