Merge pull request #2148 from olleolleolle/4-0-java-opts

CI: Add --add-opens in order to support JDK11

Author: JonRowe

.travis.yml

@@ -39,19 +39,23 @@ matrix:
   include:
     # Rails 6 builds
     - rvm: jruby-head
+      jdk: oraclejdk11
       env:
         - RAILS_VERSION='~>6.0'
         - JRUBY_OPT=--dev
+        - JAVA_OPTS="--add-opens java.base/sun.nio.ch=org.jruby.dist --add-opens java.base/java.io=org.jruby.dist --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.util.regex=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/javax.crypto=ALL-UNNAMED --add-opens=java.management/sun.management=ALL-UNNAMED"
     - rvm: 2.6.3
       env: RAILS_VERSION='~>6.0'
     - rvm: 2.5.5
       env: RAILS_VERSION='~>6.0'
 
     # Rails 5.2 builds >= 2.2.2
     - rvm: jruby-head
+      jdk: oraclejdk11
       env:
         - RAILS_VERSION='~> 5.2.0'
         - JRUBY_OPT=--dev
+        - JAVA_OPTS="--add-opens java.base/sun.nio.ch=org.jruby.dist --add-opens java.base/java.io=org.jruby.dist --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.util.regex=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/javax.crypto=ALL-UNNAMED --add-opens=java.management/sun.management=ALL-UNNAMED"
     - rvm: 2.6.3
       env: RAILS_VERSION='~> 5.2.0'
     - rvm: 2.5.5