Index: web/war-util/src/main/java/org/glassfish/web/loader/WebappClassLoader.java
===================================================================
--- web/war-util/src/main/java/org/glassfish/web/loader/WebappClassLoader.java	(revision 39667)
+++ web/war-util/src/main/java/org/glassfish/web/loader/WebappClassLoader.java	(working copy)
@@ -419,6 +419,9 @@
             overridablePackages = new ConcurrentLinkedQueue<String>();
         }
         overridablePackages.add(packageName);
+        if (logger.isLoggable(Level.CONFIG)) {
+            logger.log(Level.CONFIG, String.format("Overriding package %s", packageName));
+        }
     }
     // END PE 4985680
 
Index: web/war-util/src/main/java/com/sun/enterprise/glassfish/web/WarHandler.java
===================================================================
--- web/war-util/src/main/java/com/sun/enterprise/glassfish/web/WarHandler.java	(revision 39667)
+++ web/war-util/src/main/java/com/sun/enterprise/glassfish/web/WarHandler.java	(working copy)
@@ -226,6 +226,12 @@
 
         cloader.setUseMyFaces(webXmlParser.isUseBundledJSF());
 
+        if (webXmlParser.overrideablePackages != null) {
+            for (String p : webXmlParser.overrideablePackages) {
+                cloader.addOverridablePackage(p);
+            }
+        }
+
         File libDir = new File(base, "WEB-INF/lib");
         if (libDir.exists()) {
             int baseFileLen = base.getPath().length();
@@ -269,6 +275,7 @@
         protected boolean ignoreHiddenJarFiles = false;
         protected boolean useBundledJSF = false;
         protected String extraClassPath = null;
+        protected String[] overrideablePackages;
 
         WebXmlParser(String baseStr) 
                 throws XMLStreamException, FileNotFoundException {
@@ -425,6 +432,8 @@
 
                         if ("ignoreHiddenJarFiles".equals(propName)) {
                             ignoreHiddenJarFiles = Boolean.valueOf(value);
+                        } else if ("overrideablePackages".equals(propName)) {
+                            overrideablePackages = value.split("[, ]");
                         } else {
                             Object[] params = { propName, value };
                             if (logger.isLoggable(Level.WARNING)) {
Index: web/web-glue/src/main/java/com/sun/enterprise/web/WebModule.java
===================================================================
--- web/web-glue/src/main/java/com/sun/enterprise/web/WebModule.java	(revision 39667)
+++ web/web-glue/src/main/java/com/sun/enterprise/web/WebModule.java	(working copy)
@@ -1733,6 +1733,12 @@
             }
             if("ignoreHiddenJarFiles".equalsIgnoreCase(name)) {
                 loader.setIgnoreHiddenJarFiles(ConfigBeansUtilities.toBoolean(value));
+            } else if ("overrideablePackages".equalsIgnoreCase(name)) {
+                if (value != null) {
+                    for (String p : value.split("[, ]")) {
+                        loader.addOverridablePackage(p);
+                    }
+                }
             } else {
                 Object[] params = {name, value};
                 logger.log(Level.WARNING, "webcontainer.invalidProperty",