From 32065db1dbb1f803c9cf39294f0aecfcdc1c5fbf Mon Sep 17 00:00:00 2001
From: Greg Huber <ghuber@apache.org>
Date: Fri, 10 Jan 2014 11:21:45 +0000
Subject: [PATCH] Fix class cast exception.  See WW-4275.

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1557084 13f79535-47bb-0310-9956-ffa450edef68
---
 core/src/main/java/org/apache/struts2/components/Param.java | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/core/src/main/java/org/apache/struts2/components/Param.java b/core/src/main/java/org/apache/struts2/components/Param.java
index 63a52106d..dd3e3c334 100644
--- a/core/src/main/java/org/apache/struts2/components/Param.java
+++ b/core/src/main/java/org/apache/struts2/components/Param.java
@@ -126,8 +126,7 @@ public class Param extends Component {
 
                 Object value = findValue(this.value);
                 if (suppressEmptyParameters) {
-                    String potentialValue = (String) value;
-                    if (potentialValue != null && potentialValue.length() > 0) {
+                    if (value != null && !value.toString().isEmpty()) {
                         component.addParameter(name, value);
                     }
                 } else {