Use hamcrest-integration library to use additional matchers
diff --git a/java_gen/pre-written/pom.xml b/java_gen/pre-written/pom.xml
index 9845e87..0cb42ac 100644
--- a/java_gen/pre-written/pom.xml
+++ b/java_gen/pre-written/pom.xml
@@ -46,6 +46,12 @@
             <scope>test</scope>
         </dependency>
         <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-integration</artifactId>
+            <version>1.3</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
             <groupId>org.jboss.netty</groupId>
             <artifactId>netty</artifactId>
             <version>3.2.9.Final</version>