vector/src/main/java/org/apache/arrow/vector/complex/FixedSizeListVector.java [264:288]:
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  private void reallocValidityBuffer() {
    final int currentBufferCapacity = checkedCastToInt(validityBuffer.capacity());
    long newAllocationSize = currentBufferCapacity * 2L;
    if (newAllocationSize == 0) {
      if (validityAllocationSizeInBytes > 0) {
        newAllocationSize = validityAllocationSizeInBytes;
      } else {
        newAllocationSize = getValidityBufferSizeFromCount(INITIAL_VALUE_ALLOCATION) * 2L;
      }
    }

    newAllocationSize = CommonUtil.nextPowerOfTwo(newAllocationSize);
    assert newAllocationSize >= 1;

    if (newAllocationSize > MAX_ALLOCATION_SIZE) {
      throw new OversizedAllocationException("Unable to expand the buffer");
    }

    final ArrowBuf newBuf = allocator.buffer(newAllocationSize);
    newBuf.setBytes(0, validityBuffer, 0, currentBufferCapacity);
    newBuf.setZero(currentBufferCapacity, newBuf.capacity() - currentBufferCapacity);
    validityBuffer.getReferenceManager().release(1);
    validityBuffer = newBuf;
    validityAllocationSizeInBytes = (int) newAllocationSize;
  }
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vector/src/main/java/org/apache/arrow/vector/complex/LargeListVector.java [438:461]:
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  private void reallocValidityBuffer() {
    final int currentBufferCapacity = checkedCastToInt(validityBuffer.capacity());
    long newAllocationSize = currentBufferCapacity * 2L;
    if (newAllocationSize == 0) {
      if (validityAllocationSizeInBytes > 0) {
        newAllocationSize = validityAllocationSizeInBytes;
      } else {
        newAllocationSize = getValidityBufferSizeFromCount(INITIAL_VALUE_ALLOCATION) * 2L;
      }
    }
    newAllocationSize = CommonUtil.nextPowerOfTwo(newAllocationSize);
    assert newAllocationSize >= 1;

    if (newAllocationSize > MAX_ALLOCATION_SIZE) {
      throw new OversizedAllocationException("Unable to expand the buffer");
    }

    final ArrowBuf newBuf = allocator.buffer(newAllocationSize);
    newBuf.setBytes(0, validityBuffer, 0, currentBufferCapacity);
    newBuf.setZero(currentBufferCapacity, newBuf.capacity() - currentBufferCapacity);
    validityBuffer.getReferenceManager().release(1);
    validityBuffer = newBuf;
    validityAllocationSizeInBytes = (int) newAllocationSize;
  }
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