diff --git a/src/main/org/apache/tools/ant/IntrospectionHelper.java b/src/main/org/apache/tools/ant/IntrospectionHelper.java
index 21e5dcba7..61ffddce1 100644
--- a/src/main/org/apache/tools/ant/IntrospectionHelper.java
+++ b/src/main/org/apache/tools/ant/IntrospectionHelper.java
@@ -55,7 +55,6 @@
 package org.apache.tools.ant;
 
 import org.apache.tools.ant.types.Path;
-import org.apache.tools.ant.types.DataType;
 import org.apache.tools.ant.types.EnumeratedAttribute;
 
 import java.lang.reflect.Method;
@@ -328,8 +327,8 @@ public class IntrospectionHelper implements BuildListener {
         }
         try {
             Object nestedElement = nc.create(element);
-            if (nestedElement instanceof DataType) {
-                ((DataType)nestedElement).setProject(project);
+            if (nestedElement instanceof ProjectComponent) {
+                ((ProjectComponent) nestedElement).setProject(project);
             }
             return nestedElement;
         } catch (IllegalAccessException ie) {
@@ -575,8 +574,8 @@ public class IntrospectionHelper implements BuildListener {
                             throws InvocationTargetException, IllegalAccessException, BuildException {
                             try {
                                 Object attribute = c.newInstance(new String[] {value});
-                                if (attribute instanceof DataType) {
-                                    ((DataType)attribute).setProject(p);
+                                if (attribute instanceof ProjectComponent) {
+                                    ((ProjectComponent) attribute).setProject(p);
                                 }
                                 m.invoke(parent, new Object[] {attribute});
                             } catch (InstantiationException ie) {
diff --git a/src/main/org/apache/tools/ant/ProjectHelper.java b/src/main/org/apache/tools/ant/ProjectHelper.java
index 907404c7a..c0e55cc67 100644
--- a/src/main/org/apache/tools/ant/ProjectHelper.java
+++ b/src/main/org/apache/tools/ant/ProjectHelper.java
@@ -561,8 +561,10 @@ public class ProjectHelper {
             try {
                 String elementName = propType.toLowerCase(Locale.US);
                 if (parent instanceof UnknownElement) {
-                    child = new UnknownElement(elementName);
-                    ((UnknownElement) parent).addChild((UnknownElement) child);
+                    UnknownElement uc = new UnknownElement(elementName);
+                    uc.setProject(project);
+                    ((UnknownElement) parent).addChild(uc);
+                    child = uc;
                 } else {
                     child = ih.createElement(project, parent, elementName);
                 }
diff --git a/src/main/org/apache/tools/ant/taskdefs/Ant.java b/src/main/org/apache/tools/ant/taskdefs/Ant.java
index 341c639b8..c0b272993 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Ant.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Ant.java
@@ -260,6 +260,7 @@ public class Ant extends Task {
             Enumeration e = properties.elements();
             while (e.hasMoreElements()) {
                 Property p=(Property) e.nextElement();
+                p.setProject(newProject);
                 p.execute();
             }