--- a/branches/concurrent/pom.xml
+++ b/branches/concurrent/pom.xml
@@ -36,5 +36,11 @@
 			<artifactId>junit</artifactId>
 			<version>4.4</version>
 		</dependency>
+        <dependency>
+            <groupId>net.jcip</groupId>
+            <artifactId>jcip-annotations</artifactId>
+            <version>1.0</version>
+            <optional>true</optional>
+        </dependency>
 	</dependencies>
 </project>