#vulnerable code 
                                public Tag annotateTag(String text, String language) {
        PipelineSpecification spec = getDefaultPipeline(language);
        TextProcessor processor = getTextProcessor(spec.getTextProcessor());
        return processor.annotateTag(text, spec);
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                public Tag annotateTag(String text, String language) {
        PipelineSpecification spec = getDefaultPipeline(language);
        if (spec == null) {
            LOG.warn("No default annotator for language: " + language);
            return null;
        }
        TextProcessor processor = getTextProcessor(spec.getTextProcessor());
        return processor.annotateTag(text, spec);
    }