missing an implementation of NamespaceContext which is required by XPath
see also CR : 6376058

This issue is with the jdk1.6.0 PIT build for b96 - 

---------------------- Testcase -----------------------
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathFactory;
import javax.xml.namespace.NamespaceContext;

public class Test{

   public static void main(String args[]){
     Test t = new Test();
      t.checkXPath56();
   }

    private void checkXPath56() {
    	  
    	  XPathFactory xpathFactory = XPathFactory.newInstance();
    	  if( xpathFactory instanceof XPathFactory ){
    	     XPath xpath = xpathFactory.newXPath();
		NamespaceContext namespaceContext = xpath.getNamespaceContext();
		System.out.println("checkXPath56() : "+namespaceContext );

     //   - updating the testcase as behaviour has changed - see CR : 6376058 for details
		if( namespaceContext != null ){
		  System.out.println("checkXPath56() : passed  ");
		}else{
		  System.out.println("checkXPath56() : failed - "+namespaceContext);
		}
           }
    }

}
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