Directory directory = newDirectory();
IndexWriterConfig conf = newIndexWriterConfig(TEST_VERSION_CURRENT, analyzer);
conf.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iwriter = new RandomIndexWriter(random(), directory, conf);
Document doc = new Document();
doc.add(new NumericDocValuesField("dv", -8841491950446638677L));
iwriter.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("dv", 9062230939892376225L));
iwriter.addDocument(doc);
iwriter.forceMerge(1);
iwriter.close();
// Now search the index: