added workaround for broken openjdk7 on travis

sf105 · sf105 · commit 631e78d1eb67 · 2016-04-06T11:55:34.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,13 @@
 language: java
 
+# workaround for broken openjdk7
+sudo: required # for setting hostname
+addons:
+  hostname: localhost
+before_install:
+- cat /etc/hosts
+# end
+
 jdk:
   - openjdk7
   - oraclejdk7
