vector/src/main/java/org/apache/arrow/vector/complex/LargeListVector.java [307:317]:
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  private void setReaderAndWriterIndex() {
    validityBuffer.readerIndex(0);
    offsetBuffer.readerIndex(0);
    if (valueCount == 0) {
      validityBuffer.writerIndex(0);
      offsetBuffer.writerIndex(0);
    } else {
      validityBuffer.writerIndex(getValidityBufferSizeFromCount(valueCount));
      offsetBuffer.writerIndex((valueCount + 1) * OFFSET_WIDTH);
    }
  }
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vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java [265:275]:
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  private void setReaderAndWriterIndex() {
    validityBuffer.readerIndex(0);
    offsetBuffer.readerIndex(0);
    if (valueCount == 0) {
      validityBuffer.writerIndex(0);
      offsetBuffer.writerIndex(0);
    } else {
      validityBuffer.writerIndex(getValidityBufferSizeFromCount(valueCount));
      offsetBuffer.writerIndex((valueCount + 1) * OFFSET_WIDTH);
    }
  }
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