From df4d70889e0c11f0e91d77fd9440c84dc584fb03 Mon Sep 17 00:00:00 2001
From: Jochen Berger <fooberger@gmail.com>
Date: Mon, 13 May 2013 09:45:08 +0200
Subject: [PATCH] fix IS filter

---
 json-path/src/main/java/com/jayway/jsonpath/Criteria.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/json-path/src/main/java/com/jayway/jsonpath/Criteria.java b/json-path/src/main/java/com/jayway/jsonpath/Criteria.java
index be238482..405b0c01 100644
--- a/json-path/src/main/java/com/jayway/jsonpath/Criteria.java
+++ b/json-path/src/main/java/com/jayway/jsonpath/Criteria.java
@@ -240,10 +240,12 @@ public class Criteria {
                 }
                 return true;
             } else {
+                Object actualVal = readSafely(this.key, map);
+
                 if (isValue == null) {
-                    return (map.get(key) == null);
+                    return actualVal == null;
                 } else {
-                    return isValue.equals(map.get(key));
+                    return isValue.equals(actualVal);
                 }
             }
         } else {