The DTD instance has not been fully parsed and cannot be inspected.
          #6151   Run-time catchable error
          The DTD instance has not been fully parsed and cannot be inspected.
Additional Information
 The DECLARED-ELEMENTS of an uninitalized DTD instance are not available.
      
 The DECLARED-GENERAL-ENTITIES of an uninitalized DTD instance are not available.
      
 The DECLARED-PARAMETER-ENTITIES of an uninitalized DTD instance are not available.
    
Explanation
 This error is thrown by declared-elements, declared-general-entities, and declared-parameter-entities when their argument DTD is not fully initialized. A possible reason is that the
        parse that created the DTD instance has not reached the dtd-end point yet.