#vulnerable code 
                                private void initializePipelineWithoutNEs() {
        //System.out.println(" >>> default processor: " + NLPManager.getInstance().getTextProcessorsManager().getDefaultProcessor().getAlias());
        Map<String, Object> params = new HashMap<>();
        params.put("tokenize", true);
        params.put("ner", false);
        PipelineSpecification ps = new PipelineSpecification(PIPELINE_WITHOUT_NER, null);
        ps.setProcessingSteps(params);
        NLPManager.getInstance().getTextProcessorsManager().getDefaultProcessor()
            .createPipeline(ps);
    } 
                            #location 8 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                private void initializePipelineWithoutNEs() {
        if (!NLPManager.getInstance().hasPipeline(PIPELINE_WITHOUT_NER)) {
            Map<String, Object> params = new HashMap<>();
            params.put("tokenize", true);
            params.put("ner", false);
            String processor = NLPManager.getInstance().getTextProcessorsManager().getDefaultProcessor().getClass().getName();
            PipelineSpecification ps = new PipelineSpecification(PIPELINE_WITHOUT_NER, processor);
            ps.setProcessingSteps(params);
            NLPManager.getInstance().addPipeline(ps);
        }
    }