potential NPE

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jxpath/trunk@670728 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/java/org/apache/commons/jxpath/util/ValueUtils.java b/src/java/org/apache/commons/jxpath/util/ValueUtils.java
index 87ef105..7b288a6 100644
--- a/src/java/org/apache/commons/jxpath/util/ValueUtils.java
+++ b/src/java/org/apache/commons/jxpath/util/ValueUtils.java
@@ -50,10 +50,10 @@
      * @return boolean
      */
     public static boolean isCollection(Object value) {
+        value = getValue(value);
         if (value == null) {
             return false;
         }
-        value = getValue(value);
         if (value.getClass().isArray()) {
             return true;
         }