update code style check
diff --git a/.travis.yml b/.travis.yml
index 1882d27..7d06826 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@
     - ./mvnw checkstyle:check
 
 script:
-    - travis_wait 30 ./mvnw clean package
+    - travis_wait 30 ./mvnw clean install -DskipTests=false -Dcheckstyle.skip=false -Dmaven.javadoc.skip=true
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
diff --git a/pom.xml b/pom.xml
index 054224e..3de99ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -164,7 +164,6 @@
 									<encoding>UTF-8</encoding>
 									<consoleOutput>true</consoleOutput>
 									<failOnViolation>true</failOnViolation>
-									<excludes>**/JSONWriter.java</excludes>
 								</configuration>
 								<goals>
 									<goal>check</goal>