Add OpenJDK 13-EA to Travis builds.

Gary Gregory · Gary Gregory · commit 880e64274e06 · 2019-04-16T09:16:44.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -21,6 +21,7 @@ jdk:
   - openjdk8
   - openjdk11
   - openjdk12
+  - openjdk-ea
   - oraclejdk8
   - oraclejdk11
 
