diff --git a/framework/src/main/java/org/apache/felix/framework/BundleImpl.java b/framework/src/main/java/org/apache/felix/framework/BundleImpl.java
index ff2ffd6..9ce585a 100644
--- a/framework/src/main/java/org/apache/felix/framework/BundleImpl.java
+++ b/framework/src/main/java/org/apache/felix/framework/BundleImpl.java
@@ -838,7 +838,8 @@
 
     public Map getSignerCertificates(int signersType)
     {
-        throw new UnsupportedOperationException("Not yet implemented.");
+        // TODO: SECURITY - This needs to be adapted to our security mechanisms.
+        return new HashMap();
     }
 
     Object getSignerMatcher()