Add jdk 10 and 11 to .travis.yml

.travis.yml

@@ -1,10 +1,28 @@
 language: java
-jdk:
-  - openjdk8
-  - oraclejdk8
-  - oraclejdk9
+sudo: false
+
+matrix:
+  include:
+    - env: JDK='OpenJDK 8'
+      jdk: openjdk8
+    - env: JDK='OracleJDK 8'
+      jdk: oraclejdk8
+    - env: JDK='OpenJDK 9'
+      install: . ./install-jdk.sh -F 9 -L GPL
+    - env: JDK='OracleJDK 9'
+      jdk: oraclejdk9
+    - env: JDK='OpenJDK 10'
+      install: . ./install-jdk.sh -F 10 -L GPL
+    - env: JDK='OracleJDK 10'
+      install: . ./install-jdk.sh -F 10 -L BCL
+    - env: JDK='OpenJDK 11'
+      install: . ./install-jdk.sh -F 11 -L GPL
+    - env: JDK='OracleJDK 11'
+      install: . ./install-jdk.sh -F 11 -L BCL
+
+before_install: wget https://raw.githubusercontent.com/sormuras/bach/master/install-jdk.sh
 
 after_success:
-  - if [[ "${TRAVIS_JDK_VERSION}" == 'openjdk8' ]]; then
+  - if [[ "${JDK}" == 'OpenJDK 8' ]]; then
       mvn deploy --settings .travis-settings.xml -DskipTests=true -B || travis_terminate 1;
     fi