Remove openjdk10 from Travis matrix and add openjdk12

Author: filiphr

.travis.yml

@@ -9,13 +9,8 @@ matrix:
   include:
   - jdk: openjdk8
   - jdk: oraclejdk8
-  - jdk: openjdk10
-    # For some reason pulling from sonatype_snapshots does not work for openjdk10 and we have to manually symlink
-    # See https://github.com/travis-ci/travis-ci/issues/9368#issuecomment-405070163
-    before_install:
-      - rm "${JAVA_HOME}/lib/security/cacerts"
-      - ln -s /etc/ssl/certs/java/cacerts "${JAVA_HOME}/lib/security/cacerts"
   - jdk: openjdk11
+  - jdk: openjdk12
   - jdk: openjdk-ea
   allow_failures:
   - jdk: openjdk-ea