[Jboss-dev-forums] [Design of JBossXB] - Re: Xerces 2.7.0 changes the XSImplementation implementation

[<sco...@jb...>]

The 2.7.0 version requires a org.apache.xerces.dom.DOMXSImplementationSourceImpl to be installed as the DOMImplementationRegistry.PROPERTY:


  | import org.w3c.dom.DOMImplementationRegistry;
  | import org.apache.xerces.xs.XSImplementation;
  | import org.apache.xerces.xs.XSLoader; 
  | 
  | ...
  |    
  | // Get DOM Implementation using DOM Registry
  | System.setProperty(DOMImplementationRegistry.PROPERTY,
  |     "org.apache.xerces.dom.DOMXSImplementationSourceImpl");
  | DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
  | 
  | XSImplementation impl = 
  |     (XSImplementation) registry.getDOMImplementation("XS-Loader");
  | 
  | XSLoader schemaLoader = impl.createXSLoader(null);
  | 
  | ...
  | 

I made that change, but there is another integration problem seen when the server starts up under jdk5:


  | 2005-07-11 21:27:36,294 DEBUG [org.jboss.security.auth.login.XMLLoginConfigImpl] Failed to load config as XML
  | java.lang.NoSuchFieldError: fFeatures
  | 	at org.jboss.xb.binding.parser.xni.XniJBossXBParser$ParserConfiguration.configurePipeline(XniJBossXBParser.java:459)
  | 	at org.apache.xerces.parsers.DTDConfiguration.reset(Unknown Source)
  | 	at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
  | 	at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
  | 	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
  | 	at org.jboss.xb.binding.parser.xni.XniJBossXBParser.parse(XniJBossXBParser.java:207)
  | 	at org.jboss.xb.binding.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:137)
  | 	at org.jboss.security.auth.login.XMLLoginConfigImpl.loadXMLConfig(XMLLoginConfigImpl.java:309)
  | 

As far as I can see the fFeatures field should be accessible based on the javap output of the lib/endoresed/xercesImpl.jar :

  | [starksm@banshee9100 bin]$ javap -s -classpath ../lib/endorsed/xercesImpl.jar o
  | rg.apache.xerces.util.ParserConfigurationSettings
  | public class org.apache.xerces.util.ParserConfigurationSettings extends java.lan
  | g.Object implements org.apache.xerces.xni.parser.XMLComponentManager{
  | protected static final java.lang.String PARSER_SETTINGS;
  |   Signature: Ljava/lang/String;
  | protected java.util.ArrayList fRecognizedProperties;
  |   Signature: Ljava/util/ArrayList;
  | protected java.util.HashMap fProperties;
  |   Signature: Ljava/util/HashMap;
  | protected java.util.ArrayList fRecognizedFeatures;
  |   Signature: Ljava/util/ArrayList;
  | protected java.util.HashMap fFeatures;
  |   Signature: Ljava/util/HashMap;
  | ...
  | 

This level of integration is certainly problematic. Is this still necessary with 2.7.0?


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