add travis maven cache

nidi3 · nidi3 · commit cd6ee70a33d3 · 2018-09-15T21:58:30.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,10 @@
-language: java
 sudo: false
+language: java
+jdk:
+- oraclejdk8
+cache:
+  directories:
+  - $HOME/.m2
 
 after_success:
 - bash <(curl -s https://codecov.io/bash)
