1 files changed, 2 insertions, 1 deletions
diff --git a/src/main/java/com/c2kernel/utils/Resource.java b/src/main/java/com/c2kernel/utils/Resource.java
index d24b8f8..b7fc4a3 100644
--- a/src/main/java/com/c2kernel/utils/Resource.java
+++ b/src/main/java/com/c2kernel/utils/Resource.java
@@ -43,7 +43,8 @@ public class Resource {
     	addModuleBaseURL(ns, getURLorResURL(newBaseURL));
     }
 
-    public static URL getModuleBaseURL(String ns) {
+    public static URL getModuleBaseURL(String ns) throws MalformedURLException {
+    	if (!moduleBaseURLs.containsKey(ns)) throw new MalformedURLException("Could not locate resource. Namespace '"+ns+"' unknown");
         return moduleBaseURLs.get(ns);
     }