--- src/main/webwork/multipart/MultiPartRequestWrapper.java.orig	2004-06-28 12:13:27.210163000 +0200
+++ src/main/webwork/multipart/MultiPartRequestWrapper.java	2004-06-28 12:19:10.436634000 +0200
@@ -43,7 +43,8 @@
       } else {
          String parser = Configuration.getString("webwork.multipart.parser");
          if ("cos".equals(parser)) {
-            multi = new CosMultiPartRequest(request, saveDir, maxSize.intValue());
+//          multi = new CosMultiPartRequest(request, saveDir, maxSize.intValue());
+            throw new IOException("cos-multipart not supported in this build. Use pell-multipart...");
          } else
          if ("pell".equals(parser)) {
             multi = new PellMultiPartRequest(request, saveDir, maxSize.intValue());