CI: Add JDK 10 and 11 build on Travis. (#1909)

* CI: Add JDK 10 and 11 build on Travis.

* Add to build scripts.

* Disable JDK 11 for now.

Author: songy23

.travis.yml

@@ -13,6 +13,15 @@ matrix:
     env: TASK=BUILD
     os: linux
 
+  - jdk: openjdk10
+    env: TASK=BUILD
+    os: linux
+
+# TODO(songy23): fix JDK 11 build
+#  - jdk: openjdk11
+#    env: TASK=BUILD
+#    os: linux
+
   - jdk: oraclejdk8
     env: TASK=CHECKER_FRAMEWORK
     os: linux

buildscripts/travis_script

@@ -19,6 +19,12 @@ case "$TASK" in
           "oraclejdk9")
             ./gradlew clean assemble check --stacktrace
             ;;
+          "openjdk10")
+            ./gradlew clean assemble check --stacktrace
+            ;;
+          "openjdk11")
+            ./gradlew clean assemble check --stacktrace
+            ;;
           "oraclejdk8")
             export JAVA_HOMES="$(jdk_switcher home oraclejdk8)/jre:$(jdk_switcher home oraclejdk9)"
             ./gradlew clean assemble --stacktrace