add groupId and maven build with setRunHeadless( true ): prevent too many coffee on osx!

test/pom.xml

@@ -178,6 +178,7 @@ THE SOFTWARE.
         <extensions>true</extensions>
       </plugin>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <!-- version specified in grandparent pom -->
         <configuration>

test/src/main/java/org/jvnet/hudson/test/JenkinsRule.java

@@ -720,7 +720,9 @@ public class JenkinsRule implements TestRule, MethodRule, RootAction {
      * @see #configureDefaultMaven()
      */
     public MavenModuleSet createMavenProject(String name) throws IOException {
-        return jenkins.createProject(MavenModuleSet.class,name);
+        MavenModuleSet mavenModuleSet = jenkins.createProject(MavenModuleSet.class,name);
+        mavenModuleSet.setRunHeadless( true );
+        return mavenModuleSet;
     }
 
     /**

test/src/test/java/hudson/tasks/MavenTest.java

@@ -207,7 +207,7 @@ public class MavenTest extends HudsonTestCase {
         @SuppressWarnings("deprecation")
         String buildLog = build.getLog();
         assertNotNull(buildLog);
-	System.out.println(buildLog);
+	    System.out.println(buildLog);
         assertFalse(buildLog.contains("-Dpassword=12345"));
     }