diff --git a/.travis.yml b/.travis.yml
index 889f1e2..8eb0548 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,3 +16,23 @@
     - $HOME/.coursier
     - $HOME/.embedmysql
     - $HOME/.embedpostgresql
+matrix:
+  include:
+  - dist: trusty
+    group: edge
+    sudo: required
+    jdk: oraclejdk9
+    script:
+    # https://github.com/sbt/sbt/pull/2951
+    - git clone https://github.com/retronym/java9-rt-export
+    - cd java9-rt-export/
+    - git checkout 1019a2873d057dd7214f4135e84283695728395d
+    - jdk_switcher use oraclejdk8
+    - sbt package
+    - jdk_switcher use oraclejdk9
+    - mkdir -p $HOME/.sbt/0.13/java9-rt-ext; java -jar target/java9-rt-export-*.jar $HOME/.sbt/0.13/java9-rt-ext/rt.jar
+    - jar tf $HOME/.sbt/0.13/java9-rt-ext/rt.jar | grep java/lang/Object
+    - cd ..
+    - echo "sbt.version=0.13.14-RC1" > project/build.properties
+    - wget https://raw.githubusercontent.com/paulp/sbt-extras/9ade5fa54914ca8aded44105bf4b9a60966f3ccd/sbt && chmod +x ./sbt
+    - ./sbt -Dscala.ext.dirs=$HOME/.sbt/0.13/java9-rt-ext test
diff --git a/build.sbt b/build.sbt
index cf4c130..ace5b0b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -54,6 +54,7 @@
   "javax.servlet"                   %  "javax.servlet-api"            % "3.1.0"          % "provided",
   "junit"                           %  "junit"                        % "4.12"           % "test",
   "org.scalatra"                    %% "scalatra-scalatest"           % ScalatraVersion  % "test",
+  "org.mockito"                     %  "mockito-core"                 % "2.7.16"         % "test",
   "com.wix"                         %  "wix-embedded-mysql"           % "2.1.4"          % "test",
   "ru.yandex.qatools.embed"         %  "postgresql-embedded"          % "1.14"           % "test"
 )