Drops JDK7 as not supported on Travis
diff --git a/.travis.yml b/.travis.yml
index ca6e961..c569a2d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,6 @@
     - $HOME/.m2

 

 jdk:

-  - openjdk7

   - openjdk8

   - openjdk11