diff --git a/jar/plugin.jelly b/jar/plugin.jelly
index b2ba0887..60afe630 100644
--- a/jar/plugin.jelly
+++ b/jar/plugin.jelly
@@ -59,16 +59,17 @@
             <ant:attribute name="Main-Class" value="${mainclass}"/>
         </j:if>
         
-        <j:if test="${pom.getArtifacts().size() != 0}">
-          <j:set var="extensionList" value=""/>
-          <j:forEach var="artifact" items="${pom.artifacts}">
-            <j:set var="dep" value="${artifact.dependency}"/>
-	        <j:set var="extensionList" value="${extensionList},${dep.artifactId}"/>
-          </j:forEach>
-        
+        <j:set var="extensionList" value=""/>
+        <j:forEach var="artifact" items="${pom.artifacts}">
+          <j:set var="dep" value="${artifact.dependency}"/>
+          <j:set var="extensionList" value="${extensionList},${dep.artifactId}"/>
+        </j:forEach>
+
+	  <j:if test="${extensionList.length() != 0}">        
           <j:set var="extensionList" value="${extensionList.substring(1)}"/>
           <ant:attribute name="Extension-List" value="${extensionList}"/>
         </j:if>
+
         
         <j:forEach var="artifact" items="${pom.artifacts}">
           <j:set var="dep" value="${artifact.dependency}"/>