Make sure the source jar is built for utils

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1548326 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/utils/pom.xml b/utils/pom.xml
index c4d4fcf..98bd549 100644
--- a/utils/pom.xml
+++ b/utils/pom.xml
@@ -48,6 +48,20 @@
   <build>
     <plugins>
         <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-source-plugin</artifactId>
+            <version>2.2.1</version>
+            <executions>
+                <execution>
+                    <id>attach-sources</id>
+                    <phase>prepare-package</phase>
+                    <goals>
+                        <goal>jar-no-fork</goal>
+                    </goals>
+                </execution>
+            </executions>
+        </plugin>
+        <plugin>
             <artifactId>maven-compiler-plugin</artifactId>
             <configuration>
                 <source>1.5</source>