Turns out we have JDK7+ dependencies, so no JDK6 support!

.travis.yml

@@ -2,6 +2,5 @@ language: java
 jdk:
     - oraclejdk8
     - openjdk7
-    - openjdk6
 services:
     - redis-server

build.gradle

@@ -13,8 +13,8 @@ group = 'com.github.lookout'
 version = '0.3.0'
 description = 'A server-side webhook publishing library'
 
-sourceCompatibility = '1.6'
-targetCompatibility = '1.6'
+sourceCompatibility = '1.7'
+targetCompatibility = '1.7'
 
 ////////////////////////////////////////////////////////////////////////////////
 // DEPENDENCY CONFIGURATION