Index: src/main/java/org/apache/maven/plugin/assembly/archive/task/AddFileSetsTask.java
===================================================================
--- src/main/java/org/apache/maven/plugin/assembly/archive/task/AddFileSetsTask.java	(revision 598221)
+++ src/main/java/org/apache/maven/plugin/assembly/archive/task/AddFileSetsTask.java	(working copy)
@@ -136,6 +136,7 @@
             }
             finally
             {
+                /*
                 try
                 {
                     if ( !fileSetDir.equals( origFileSetDir ) )
@@ -148,6 +149,7 @@
                     // ignore - we've just left something in the temporary directory
                     logger.warn( "Unable to delete temporary directory: " + fileSetDir + ": " + e.getMessage() );
                 }
+                */
             }
         }
     }