indexSearcher using NumericRangeQuery doesn't gives result. Any help ?

[gubs]

Hi,

I am new to lucene library. I need to write some numeric field in the doc
using indexwriter and using index searcher i need to search if the value
range (age > 40) as example.

IndexWriter Snippet below. The value is available in the doc properly.
(Document<indexed,tokenized,omitNorms,omitTermFreqAndPositions&lt;title:40>>)
                Document doc = new Document();
                NumericField numericField = new NumericField("title",
                                Integer.parseInt(value));
                numericField.setIntValue(Integer.parseInt(value));
                doc.add(numericField);
                iw.addDocument(doc);
               iw.optimize();
                iw.close();

indexSearcher snippet below. IndexSearcher prints the hits length correctly.
Having said the result is not getting printed from the doc. Any help ? I
spend so much time and failed to find.

Query queryParser = NumericRangeQuery.newIntRange("title", 40, 6000, true,
true);

                // 3. Search
                int hitsPerPage = 10;
                IndexSearcher indexSearcher = new IndexSearcher(index, true);
                TopScoreDocCollector collector = TopScoreDocCollector.create(
                                hitsPerPage, true);
                indexSearcher.search(queryParser, collector);

                ScoreDoc[] hits = collector.topDocs().scoreDocs;

                // 4. Display result
                log.info("List of docs found : " + hits.length);
                for (int i = 0; i < hits.length; i++) {
                        int docId = hits[i].doc;
                        System.out.println(docId);
                        Document doc = indexSearcher.doc(docId);
                        log.info(i + 1 + " . " + doc.get("title"));
                }


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