Index: src/main/java/org/apache/shale/tiger/view/faces/LifecycleListener2.java
===================================================================
--- src/main/java/org/apache/shale/tiger/view/faces/LifecycleListener2.java	(Revision 474361)
+++ src/main/java/org/apache/shale/tiger/view/faces/LifecycleListener2.java	(Arbeitskopie)
@@ -975,8 +975,11 @@
             if (comma < 0) {
                 resources = resources.trim();
                 if (resources.length() > 0) {
-                    list.add(servletContext.getResource(resources));
-                }
+					URL resource = servletContext.getResource(resources);
+					if (resource != null) {
+						list.add(resource);
+					}
+				}
                 resources = "";
             } else {
                 list.add(servletContext.getResource(resources.substring(0, comma).trim()));