improved the handling when a module build doesn't exist.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@7506 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/resources/hudson/maven/MavenModuleSetBuild/main.jelly

@@ -5,15 +5,24 @@
     <j:when test="${it.project.aggregatorStyleBuild}">
       <j:forEach var="m" items="${it.project.modules}">
         <div>
-          <a href="${m.shortUrl}">
-            <j:set var="mb" value="${m.getBuildByNumber(it.number)}"/>
-            <img src="${imagesURL}/16x16/${mb.buildStatusUrl}"
-                 alt="${mb.iconColor.description}"/>
-          </a>
-          <st:nbsp/>
-          <a href="${m.shortUrl}">
-            ${m.displayName}
-          </a>
+          <j:set var="mb" value="${m.getBuildByNumber(it.number)}"/>
+          <j:choose>
+            <j:when test="${mb!=null}">
+              <a href="${m.shortUrl}">
+                <img src="${imagesURL}/16x16/${mb.buildStatusUrl}"
+                     alt="${mb.iconColor.description}"/>
+              </a>
+              <st:nbsp/>
+              <a href="${m.shortUrl}">
+                ${m.displayName}
+              </a>
+            </j:when>
+            <j:otherwise><!-- module build non-existent, so no link -->
+              <img src="${imagesURL}/16x16/grey.gif" />
+              <st:nbsp/>
+              ${m.displayName}
+            </j:otherwise>
+          </j:choose>
         </div>
       </j:forEach>
     </j:when>