increase java version for travis

Eugen Freiter · Eugen Freiter · commit abdf6099793b · 2019-09-30T23:31:58.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: java
-jdk: oraclejdk8
+jdk: oraclejdk9
 after_success:
 - openssl aes-256-cbc -pass pass:$ENCRYPTION_PASSWORD -in deploy/pubring.gpg.enc -out
   deploy/pubring.gpg -d
