diff --git a/src/main/org/apache/tools/ant/DirectoryScanner.java b/src/main/org/apache/tools/ant/DirectoryScanner.java
index e846ae0f5..9da320505 100644
--- a/src/main/org/apache/tools/ant/DirectoryScanner.java
+++ b/src/main/org/apache/tools/ant/DirectoryScanner.java
@@ -56,6 +56,7 @@ package org.apache.tools.ant;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Arrays;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -1032,6 +1033,7 @@ public class DirectoryScanner
     public String[] getIncludedFiles() {
         String[] files = new String[filesIncluded.size()];
         filesIncluded.copyInto(files);
+        Arrays.sort(files);
         return files;
     }
 
@@ -1099,6 +1101,7 @@ public class DirectoryScanner
     public String[] getIncludedDirectories() {
         String[] directories = new String[dirsIncluded.size()];
         dirsIncluded.copyInto(directories);
+        Arrays.sort(directories);
         return directories;
     }
 
diff --git a/src/main/org/apache/tools/ant/types/Resource.java b/src/main/org/apache/tools/ant/types/Resource.java
index 76a5cd3f9..279478c38 100644
--- a/src/main/org/apache/tools/ant/types/Resource.java
+++ b/src/main/org/apache/tools/ant/types/Resource.java
@@ -63,7 +63,7 @@ package org.apache.tools.ant.types;
  * @author <a href="mailto:levylambert@tiscali-dsl.de">Antoine Levy-Lambert</a>
  * @since Ant 1.5.2
  */
-public class Resource implements Cloneable {
+public class Resource implements Cloneable, Comparable {
     private String name = null;
     private boolean exists = true;
     private long lastmodified = 0;
@@ -179,4 +179,17 @@ public class Resource implements Cloneable {
         }
     }
 
+    /**
+     * delegates to a comparison of names.
+     *
+     * @since Ant 1.6
+     */
+    public int compareTo(Object other) {
+        if (!(other instanceof Resource)) {
+            throw new IllegalArgumentException("Can only be compared with "
+                                               + "Resources");
+        }
+        Resource r = (Resource) other;
+        return getName().compareTo(r.getName());
+    }
 }
diff --git a/src/main/org/apache/tools/ant/types/ZipScanner.java b/src/main/org/apache/tools/ant/types/ZipScanner.java
index 81ed1e3bd..fa0de815e 100644
--- a/src/main/org/apache/tools/ant/types/ZipScanner.java
+++ b/src/main/org/apache/tools/ant/types/ZipScanner.java
@@ -56,6 +56,7 @@ package org.apache.tools.ant.types;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Arrays;
 import java.util.Vector;
 import java.util.Hashtable;
 import java.util.Enumeration;
@@ -138,6 +139,7 @@ public class ZipScanner extends DirectoryScanner {
             }
             String[] files = new String[myvector.size()];
             myvector.copyInto(files);
+            Arrays.sort(files);
             return files;
         } else {
             return super.getIncludedFiles();
@@ -165,6 +167,7 @@ public class ZipScanner extends DirectoryScanner {
             }
             String[] files = new String[myvector.size()];
             myvector.copyInto(files);
+            Arrays.sort(files);
             return files;
         } else {
             return super.getIncludedDirectories();