try to build on more JDK versions

Volker · Volker · commit 164b1a6ff9c2 · 2018-09-29T17:54:13.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -6,4 +6,8 @@ language: java
 jdk:
   - oraclejdk8
   - oraclejdk9
+  - oraclejdk10
+  - oraclejdk-ea
+  - openjdk10
+  - openjdk11
 script: ./gradlew check benchmark
