try {
accumulator.flush();
final InputBitStream ibs = new InputBitStream( accumulatorStream.array );
final IndexWriter indexWriter = new BitStreamIndexWriter( batchBasename, indexingType == IndexingType.STANDARD ? documentCount : maxDocInBatch + 1, true, flags );
indexWriter.newInvertedList();
indexWriter.writeFrequency( documentCount );
OutputBitStream obs;
if ( indexingType == IndexingType.STANDARD ) {
for ( int i = 0; i < documentCount; i++ ) {