Added org.w3c.dom too.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@273241 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/AntClassLoader.java

@@ -324,6 +324,7 @@ public class AntClassLoader extends ClassLoader implements BuildListener {
         addSystemPackageRoot("java");
         addSystemPackageRoot("javax");
         addSystemPackageRoot("org.xml.sax");
+        addSystemPackageRoot("org.w3c.dom");
         addSystemPackageRoot("sun.reflect");
     }