run the test with timeout option

test/pom.xml

@@ -53,9 +53,9 @@ THE SOFTWARE.
       </plugin>
       <plugin>
         <!-- see http://maven-junit-plugin.kenai.com/ for more info -->
-        <groupId>com.sun.maven</groupId>
+        <groupId>org.kohsuke</groupId>
         <artifactId>maven-junit-plugin</artifactId>
-        <version>1.8</version>
+        <version>1.9</version>
         <executions>
           <execution>
             <goals>
@@ -65,6 +65,7 @@ THE SOFTWARE.
               <fork>true</fork>
               <concurrency>${concurrency}</concurrency>
               <argLine>-Dfile.encoding=UTF-8</argLine>
+              <timeout>300</timeout>
               <systemProperties>
                 <property>
                   <!-- use AntClassLoader that supports predictable file handle release -->