From 08f27b19f20d6c25bb926a0c5a9a257732ea644d Mon Sep 17 00:00:00 2001
From: Matthew Jason Benson <mbenson@apache.org>
Date: Wed, 9 May 2007 14:08:50 +0000
Subject: [PATCH] if either resource to be compared has an unknown size, we
 must compare content

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@536536 13f79535-47bb-0310-9956-ffa450edef68
---
 src/main/org/apache/tools/ant/util/ResourceUtils.java | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/main/org/apache/tools/ant/util/ResourceUtils.java b/src/main/org/apache/tools/ant/util/ResourceUtils.java
index 99ce76648..4c085bb8d 100644
--- a/src/main/org/apache/tools/ant/util/ResourceUtils.java
+++ b/src/main/org/apache/tools/ant/util/ResourceUtils.java
@@ -438,8 +438,13 @@ public class ResourceUtils {
         if (r1.equals(r2)) {
             return true;
         }
-        if (!text && r1.getSize() != r2.getSize()) {
-            return false;
+        if (!text) {
+            long s1 = r1.getSize();
+            long s2 = r2.getSize();
+            if (s1 != Resource.UNKNOWN_SIZE && s2 != Resource.UNKNOWN_SIZE
+                    && s1 != s2) {
+                return false;
+            }
         }
         return compareContent(r1, r2, text) == 0;
     }