vector/src/main/java/org/apache/arrow/vector/LargeVarCharVector.java [214:227]:
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  public void set(int index, NullableLargeVarCharHolder holder) {
    assert index >= 0;
    fillHoles(index);
    BitVectorHelper.setValidityBit(validityBuffer, index, holder.isSet);
    final long startOffset = getStartOffset(index);
    if (holder.isSet != 0) {
      final int dataLength = (int) (holder.end - holder.start);
      offsetBuffer.setLong((long) (index + 1) * OFFSET_WIDTH, startOffset + dataLength);
      valueBuffer.setBytes(startOffset, holder.buffer, holder.start, dataLength);
    } else {
      offsetBuffer.setLong((long) (index + 1) * OFFSET_WIDTH, startOffset);
    }
    lastSet = index;
  }
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vector/src/main/java/org/apache/arrow/vector/LargeVarBinaryVector.java [210:223]:
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  public void set(int index, NullableLargeVarBinaryHolder holder) {
    assert index >= 0;
    fillHoles(index);
    BitVectorHelper.setValidityBit(validityBuffer, index, holder.isSet);
    final long startOffset = getStartOffset(index);
    if (holder.isSet != 0) {
      final int dataLength = (int) (holder.end - holder.start);
      offsetBuffer.setLong((long) (index + 1) * OFFSET_WIDTH, startOffset + dataLength);
      valueBuffer.setBytes(startOffset, holder.buffer, holder.start, dataLength);
    } else {
      offsetBuffer.setLong((long) (index + 1) * OFFSET_WIDTH, startOffset);
    }
    lastSet = index;
  }
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