diff -ur libxml-commons-resolver1.1-java.old/src/org/apache/xml/resolver/Catalog.java libxml-commons-resolver1.1-java-1.2/src/org/apache/xml/resolver/Catalog.java
--- libxml-commons-resolver1.1-java.old/src/org/apache/xml/resolver/Catalog.java	2010-01-25 22:18:12.000000000 +0000
+++ libxml-commons-resolver1.1-java-1.2/src/org/apache/xml/resolver/Catalog.java	2010-01-25 22:19:51.000000000 +0000
@@ -2182,13 +2182,15 @@
    */
   protected void addDelegate(CatalogEntry entry) {
     int pos = 0;
+    int type = entry.getEntryType();
     String partial = entry.getEntryArg(0);
 
     Enumeration local = localDelegate.elements();
     while (local.hasMoreElements()) {
       CatalogEntry dpe = (CatalogEntry) local.nextElement();
       String dp = dpe.getEntryArg(0);
-      if (dp.equals(partial)) {
+      int dptype = dpe.getEntryType();
+      if (dp.equals(partial) && (type == dptype)) {
 	// we already have this prefix
 	return;
       }