Index: stripes/src/net/sourceforge/stripes/controller/DefaultActionBeanPropertyBinder.java
===================================================================
--- stripes/src/net/sourceforge/stripes/controller/DefaultActionBeanPropertyBinder.java	(revision 869)
+++ stripes/src/net/sourceforge/stripes/controller/DefaultActionBeanPropertyBinder.java	(working copy)
@@ -727,7 +727,7 @@
             String value = values[i];
             if (!"".equals(value)) {
                 try {
-                    if (validationInfo != null && validationInfo.encrypted()) {
+                    if (validationInfo != null && validationInfo.encrypted() && values[i] != null) {
                         value = CryptoUtil.decrypt(values[i]);
                     }