--- old/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/dom/DOMImplementationImpl.java	2015-10-02 10:08:35.744696144 -0700
+++ new/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/dom/DOMImplementationImpl.java	2015-10-02 10:08:35.640690972 -0700
@@ -83,6 +83,9 @@
      * specified feature and version.
      */
     public boolean hasFeature(String feature, String version) {
+        if (feature == null || feature.length() == 0) {
+            return false;
+        }
 
         boolean result = super.hasFeature(feature, version);
         if (!result) {