Switch Travis build to use openjdk

nightowlengineer · nightowlengineer · commit ec41a852dae7 · 2018-11-07T22:16:03.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,4 @@
 language: java
 jdk:
-  - oraclejdk8
+  - openjdk8
 install: mvn install -Dgpg.skip
