diff --git a/src/etc/testcases/taskdefs/ant.xml b/src/etc/testcases/taskdefs/ant.xml
index 81f795b09..cc62d2ea1 100644
--- a/src/etc/testcases/taskdefs/ant.xml
+++ b/src/etc/testcases/taskdefs/ant.xml
@@ -143,4 +143,23 @@
     <property name="test" value="5" />
     <echo message="The value of test is ${test}" />
   </target>
+
+  <target name="test-propertyset">
+    <property name="test1" value="1"/>
+    <property name="test2" value="2"/>
+    <propertyset id="set">
+      <propertyref name="test1"/>
+      <mapper type="glob" from="*" to="*.x"/>
+    </propertyset>
+    <ant antfile="ant.xml" target="echo-for-propertyset-test" 
+         inheritall="false">
+      <propertyset refid="set"/>
+    </ant>
+  </target>
+
+  <target name="echo-for-propertyset-test">
+    <echo>test1 is ${test1}</echo>
+    <echo>test2 is ${test2}</echo>
+    <echo>test1.x is ${test1.x}</echo>
+  </target>
 </project>
diff --git a/src/main/org/apache/tools/ant/taskdefs/Ant.java b/src/main/org/apache/tools/ant/taskdefs/Ant.java
index a847b05ff..6a2edc0f0 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Ant.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Ant.java
@@ -69,6 +69,7 @@ import org.apache.tools.ant.Project;
 import org.apache.tools.ant.ProjectComponent;
 import org.apache.tools.ant.ProjectHelper;
 import org.apache.tools.ant.Task;
+import org.apache.tools.ant.types.PropertySet;
 import org.apache.tools.ant.util.FileUtils;
 
 /**
@@ -129,6 +130,9 @@ public class Ant extends Task {
     /** The stream to which output is to be written. */
     private PrintStream out = null;
 
+    /** the sets of properties to pass to the new project */
+    private Vector propertySets = new Vector();
+
     /**
      * If true, pass all properties to the new Ant project.
      * Defaults to true.
@@ -264,23 +268,13 @@ public class Ant extends Task {
 
         } else {
             // set all properties from calling project
+            addAlmostAll(getProject().getProperties());
+        }
 
-            Hashtable props = getProject().getProperties();
-            e = props.keys();
-            while (e.hasMoreElements()) {
-                String arg = e.nextElement().toString();
-                if ("basedir".equals(arg) || "ant.file".equals(arg)) {
-                    // basedir and ant.file get special treatment in execute()
-                    continue;
-                }
-
-                String value = props.get(arg).toString();
-                // don't re-set user properties, avoid the warning message
-                if (newProject.getProperty(arg) == null){
-                    // no user property
-                    newProject.setNewProperty(arg, value);
-                }
-            }
+        e = propertySets.elements();
+        while (e.hasMoreElements()) {
+            PropertySet ps = (PropertySet) e.nextElement();
+            addAlmostAll(ps.getProperties());
         }
     }
 
@@ -550,6 +544,31 @@ public class Ant extends Task {
         newProject.addReference(newKey, copy);
     }
 
+    /**
+     * Copies all properties from the given table to the new project -
+     * ommiting those that have already been set in the new project as
+     * well as properties named basedir or ant.file.
+     *
+     * @since Ant 1.6
+     */
+    private void addAlmostAll(Hashtable props) {
+        Enumeration e = props.keys();
+        while (e.hasMoreElements()) {
+            String key = e.nextElement().toString();
+            if ("basedir".equals(key) || "ant.file".equals(key)) {
+                // basedir and ant.file get special treatment in execute()
+                continue;
+            }
+
+            String value = props.get(key).toString();
+            // don't re-set user properties, avoid the warning message
+            if (newProject.getProperty(key) == null){
+                // no user property
+                newProject.setNewProperty(key, value);
+            }
+        }
+    }
+
     /**
      * The directory to use as a base directory for the new Ant project.
      * Defaults to the current project's basedir, unless inheritall
@@ -617,6 +636,15 @@ public class Ant extends Task {
         references.addElement(r);
     }
 
+    /**
+     * Set of properties to pass to the new project.
+     *
+     * @since Ant 1.6
+     */
+    public void addPropertyset(PropertySet ps) {
+        propertySets.addElement(ps);
+    }
+
     /**
      * Helper class that implements the nested &lt;reference&gt;
      * element of &lt;ant&gt; and &lt;antcall&gt;.
diff --git a/src/main/org/apache/tools/ant/taskdefs/CallTarget.java b/src/main/org/apache/tools/ant/taskdefs/CallTarget.java
index cce27c145..0bd56844c 100644
--- a/src/main/org/apache/tools/ant/taskdefs/CallTarget.java
+++ b/src/main/org/apache/tools/ant/taskdefs/CallTarget.java
@@ -166,6 +166,18 @@ public class CallTarget extends Task {
         callee.addReference(r);
     }
 
+    /**
+     * Set of properties to pass to the new project.
+     *
+     * @since Ant 1.6
+     */
+    public void addPropertyset(org.apache.tools.ant.types.PropertySet ps) {
+        if (callee == null) {
+            init();
+        }
+        callee.addPropertyset(ps);
+    }
+
     /**
      * Target to execute, required.
      */
diff --git a/src/main/org/apache/tools/ant/taskdefs/SubAnt.java b/src/main/org/apache/tools/ant/taskdefs/SubAnt.java
index 0e17386b0..292c0b18d 100644
--- a/src/main/org/apache/tools/ant/taskdefs/SubAnt.java
+++ b/src/main/org/apache/tools/ant/taskdefs/SubAnt.java
@@ -68,6 +68,7 @@ import org.apache.tools.ant.types.Path;
 import org.apache.tools.ant.types.DirSet;
 import org.apache.tools.ant.types.FileSet;
 import org.apache.tools.ant.types.FileList;
+import org.apache.tools.ant.types.PropertySet;
 import org.apache.tools.ant.types.Reference;
 
 import org.apache.tools.ant.taskdefs.Ant;
@@ -97,6 +98,7 @@ public class SubAnt
 
     private Vector properties = new Vector();
     private Vector references = new Vector();
+    private Vector propertySets = new Vector();
 
     /**
      * Runs the various sub-builds.
@@ -238,6 +240,14 @@ public class SubAnt
         references.addElement(r);
     }
 
+    /**
+     * Corresponds to <code>&lt;ant&gt;</code>'s
+     * nested <code>&lt;propertyset&gt;</code> element.
+     */
+    public void addPropertyset(PropertySet ps) {
+        propertySets.addElement(ps);
+    }
+
     /**
      * Adds a directory set to the implicit build path.
      * <p>
@@ -345,6 +355,10 @@ public class SubAnt
             copyProperty(ant.createProperty(), (Property) i.nextElement());
         }
         
+        for (Enumeration i = propertySets.elements(); i.hasMoreElements();) {
+            ant.addPropertyset((PropertySet) i.nextElement());
+        }
+        
         ant.setInheritRefs(inheritRefs);
         for (Enumeration i = references.elements(); i.hasMoreElements();) {
             ant.addReference((Ant.Reference) i.nextElement());
diff --git a/src/testcases/org/apache/tools/ant/taskdefs/AntTest.java b/src/testcases/org/apache/tools/ant/taskdefs/AntTest.java
index dbc32b48e..0ccb93e83 100644
--- a/src/testcases/org/apache/tools/ant/taskdefs/AntTest.java
+++ b/src/testcases/org/apache/tools/ant/taskdefs/AntTest.java
@@ -1,7 +1,7 @@
 /*
  * The Apache Software License, Version 1.1
  *
- * Copyright (c) 2000-2002 The Apache Software Foundation.  All rights
+ * Copyright (c) 2000-2003 The Apache Software Foundation.  All rights
  * reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -295,6 +295,13 @@ public class AntTest extends BuildFileTest {
                             "The value of test is 4");
     }
 
+    public void testPropertySet() {
+        executeTarget("test-propertyset");
+        assertTrue(getLog().indexOf("test1 is ${test1}") > -1);
+        assertTrue(getLog().indexOf("test2 is ${test2}") > -1);
+        assertTrue(getLog().indexOf("test1.x is 1") > -1);
+    }
+
     private class BasedirChecker implements BuildListener {
         private String[] expectedBasedirs;
         private int calls = 0;