src/com/sun/org/apache/xerces/internal/jaxp/validation/ValidatorHandlerImpl.java

*** 673,684 ****
                      SAXParserFactory spf = fComponentManager.getFeature(Constants.ORACLE_FEATURE_SERVICE_MECHANISM) ?
                                      SAXParserFactory.newInstance() : new SAXParserFactoryImpl();
                      spf.setNamespaceAware(true);
                      try {
                          reader = spf.newSAXParser().getXMLReader();
-                            reader.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD,
-                                    fComponentManager.getProperty(XMLConstants.ACCESS_EXTERNAL_DTD));
                          // If this is a Xerces SAX parser, set the security manager if there is one
                          if (reader instanceof com.sun.org.apache.xerces.internal.parsers.SAXParser) {
                             SecurityManager securityManager = (SecurityManager) fComponentManager.getProperty(SECURITY_MANAGER);
                             if (securityManager != null) {
                                 try {
--- 673,682 ----
*** 685,697 ****
--- 683,700 ----
                                     reader.setProperty(SECURITY_MANAGER, securityManager);
                                 }
                                 // Ignore the exception if the security manager cannot be set.
                                 catch (SAXException exc) {}
                             }
+                            try {
                                 reader.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, 
                                        fComponentManager.getProperty(XMLConstants.ACCESS_EXTERNAL_DTD));
+                            } catch (SAXException exc) {
+                                System.err.println("Warning: " + reader.getClass().getName() + ": " + 
+                                       exc.getMessage());
                             }
+                         }
                      } catch( Exception e ) {
                          // this is impossible, but better safe than sorry
                          throw new FactoryConfigurationError(e);
                      }
                  }