SegFaullt problem

[White Daniel E CONT DLVA]

OK, I have an object class definition for a server application
that contains:

//--------------------------------------------------------------------

        XercesDOMParser*       parser ;
        DOMTreeErrorReporter*  errReporter ;

//--------------------------------------------------------------------

When I instantiate/open the object, I do this:

//--------------------------------------------------------------------

        this->parser = new XercesDOMParser;
        this->parser->setDoNamespaces( true );
        this->parser->setDoSchema( true );
        this->parser->setValidationSchemaFullChecking( true );
        this->parser->setValidationScheme( XercesDOMParser::Val_Auto );
        this->parser->setCreateEntityReferenceNodes( false );
        this->parser->setExternalNoNamespaceSchemaLocation
                ( /* path to schema file location*/ ) ;
        this->errReporter = new DOMTreeErrorReporter();

        this->parser->setErrorHandler(this->errReporter);

//--------------------------------------------------------------------

And then I have a method called "validate" that does this:

//--------------------------------------------------------------------

bool myStreamHandler::validate ( int size, const char* buffer )
{
        bool rc = true ;
        const char* foo = "label" ; 
        // the error reporter object gets destroyed,
        // so it needs to be re-instantiated to reuse this parser
        if ( !this->errReporter )
        {   this->errReporter = new DOMTreeErrorReporter();
                this->parser->setErrorHandler(this->errReporter);
        }

        // convert the ascii text buffer to a form the parser will accept
        MemBufInputSource* memBufIS = new MemBufInputSource
                (   (const XMLByte*) buffer, 
                        size,
                        foo,
                        false
                ) ;

        // validate it
        try
        {
                this->parser->parse( *memBufIS ) ;

                if ( this->parser->getErrorCount() > 0 )
                {   cerr
                                << "Got "
                                << this->parser->getErrorCount()
                                << " errors"
                                << endl ;

                        rc = false ; 
                }
        }
        catch ( const XMLException& e )
        {
                ...
        }
        catch (const DOMException& e)
        {
                ...
        }
        catch (...)
        {
                ...
        }

        // cleanup
        delete memBufIS ;

        return rc ;
}

//--------------------------------------------------------------------

The problem is that I get occasional Segnentation Faults on either the 
creation of the MemBufInputSource object "memBufIS" or when I try to 
parse it a few lines later.

I am using Xerces-C 2.6.0

Am I doing this properly or is there a differrent/better way to do it ?

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