diff --git a/shippable.yml b/shippable.yml
index 52206a7ca08..8b6bf750d37 100644
--- a/shippable.yml
+++ b/shippable.yml
@@ -1,7 +1,12 @@
 language: java
 
 jdk:
-- oraclejdk8 
+- openjdk8
+
+branches:
+  only:
+  - master
+  - samples_update_rebase
 
 build:
   cache: true
@@ -22,8 +27,8 @@ build:
     - mix --version
     # test samples defined in pom.xml
     - cp pom.xml.shippable pom.xml
-    - mvn clean install
-    - mvn verify -P samples
+    - mvn --quiet clean install -Dmaven.javadoc.skip=true
+    - mvn --quiet verify -P samples
     # generate all petstore sampless (client, servers, doc)
     - ./bin/run-all-petstore 2>&1 > run-all-petstore.log
   post_ci: