#vulnerable code 
                                @Override
    public InterceptorData handle(UnifiedBootstrapParser parser, ParserData data) {
        InterceptorData interceptorData = new InterceptorData();

        if (pattern != null) {
            TokenExtractorResult result = pattern.extract(null);
        }

        return interceptorData;
    } 
                            #location 6 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    public InterceptorData handle(UnifiedBootstrapParser parser, ParserData data) {
        InterceptorData interceptorData = new InterceptorData();

        if (pattern != null) {
            TokenExtractorResult result = pattern.extract(data.getComponent(UniversalComponents.SOURCE_STREAM));

        }

        return interceptorData;
    }