diff --git a/ipojo/online-manipulator/src/main/java/org/apache/felix/ipojo/online/manipulator/IPOJOURLHandler.java b/ipojo/online-manipulator/src/main/java/org/apache/felix/ipojo/online/manipulator/IPOJOURLHandler.java
index 34515d9..14a9d4a 100644
--- a/ipojo/online-manipulator/src/main/java/org/apache/felix/ipojo/online/manipulator/IPOJOURLHandler.java
+++ b/ipojo/online-manipulator/src/main/java/org/apache/felix/ipojo/online/manipulator/IPOJOURLHandler.java
@@ -74,8 +74,10 @@
      */
     public void stop() {
         File[] files = m_temp.listFiles();
-        for (int i = 0; i < files.length; i++) {
-            files[i].delete();
+        if (files != null) {
+            for (int i = 0; i < files.length; i++) {
+                files[i].delete();
+            }
         }
         m_temp.delete();
     }