Travis: use old workaround due to https://github.com/travis-ci/travis-ci/issues/5669

.travis.yml

@@ -9,9 +9,16 @@ jdk: openjdk7
 # force non-container build
 sudo: required
 # OpenJDK 6 and OpenJDK 7 processes will encounter buffer overflows when the host name is too long.
+# hostname addon disabled due to https://github.com/travis-ci/travis-ci/issues/5669
 # https://docs.travis-ci.com/user/hostname
-addons:
-    hostname: short-hostname
+#addons:
+#    hostname: short-hostname
+# workaround from https://github.com/travis-ci/travis-ci/issues/5227#issuecomment-165131913
+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*
 android:
     components:
         - tools