switch to openjdk8

stefanseifert · stefanseifert · commit b4356d1a0d37 · 2019-06-02T11:51:06.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -20,7 +20,7 @@
 language: java
 
 jdk:
-- oraclejdk8
+- openjdk8
 - openjdk11
 
 # Make sure travis can use container-based infrastructure
