Travis: Build and test on JDK 7, 8 and 11.

This uses the Trusty (14.04) image since that in the only one
where all three JDKs are available.

diff --git a/.travis.yml b/.travis.yml
index a98b7603500df57f0f2b29647ceaaf6379380355..c02000c7c80f592a42bbeb65f57d9c617b32ae16 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,2 +1,8 @@
+dist: trusty
+
 language: java
 
+jdk:
+  - openjdk7
+  - openjdk8
+  - oraclejdk11