vector/src/main/java/org/apache/arrow/vector/BaseLargeVariableWidthVector.java [382:443]:
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      validityBuffer.writerIndex(getValidityBufferSizeFromCount(valueCount));
      offsetBuffer.writerIndex((long) (valueCount + 1) * OFFSET_WIDTH);
      valueBuffer.writerIndex(lastDataOffset);
    }
  }

  /** Same as {@link #allocateNewSafe()}. */
  @Override
  public void allocateNew() {
    allocateNew(lastValueAllocationSizeInBytes, lastValueCapacity);
  }

  /**
   * Allocate memory for the vector. We internally use a default value count of 4096 to allocate
   * memory for at least these many elements in the vector. See {@link #allocateNew(long, int)} for
   * allocating memory for specific number of elements in the vector.
   *
   * @return false if memory allocation fails, true otherwise.
   */
  @Override
  public boolean allocateNewSafe() {
    try {
      allocateNew(lastValueAllocationSizeInBytes, lastValueCapacity);
      return true;
    } catch (Exception e) {
      return false;
    }
  }

  /**
   * Allocate memory for the vector to support storing at least the provided number of elements in
   * the vector. This method must be called prior to using the ValueVector.
   *
   * @param totalBytes desired total memory capacity
   * @param valueCount the desired number of elements in the vector
   * @throws org.apache.arrow.memory.OutOfMemoryException if memory allocation fails
   */
  @Override
  public void allocateNew(long totalBytes, int valueCount) {
    assert totalBytes >= 0;

    checkDataBufferSize(totalBytes);
    computeAndCheckOffsetsBufferSize(valueCount);

    /* we are doing a new allocation -- release the current buffers */
    clear();

    try {
      allocateBytes(totalBytes, valueCount);
    } catch (Exception e) {
      clear();
      throw e;
    }
  }

  @Override
  public void allocateNew(int valueCount) {
    allocateNew(lastValueAllocationSizeInBytes, valueCount);
  }

  /* Check if the data buffer size is within bounds. */
  private void checkDataBufferSize(long size) {
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vector/src/main/java/org/apache/arrow/vector/BaseVariableWidthVector.java [398:459]:
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      validityBuffer.writerIndex(getValidityBufferSizeFromCount(valueCount));
      offsetBuffer.writerIndex((long) (valueCount + 1) * OFFSET_WIDTH);
      valueBuffer.writerIndex(lastDataOffset);
    }
  }

  /** Same as {@link #allocateNewSafe()}. */
  @Override
  public void allocateNew() {
    allocateNew(lastValueAllocationSizeInBytes, lastValueCapacity);
  }

  /**
   * Allocate memory for the vector. We internally use a default value count of 4096 to allocate
   * memory for at least these many elements in the vector. See {@link #allocateNew(long, int)} for
   * allocating memory for specific number of elements in the vector.
   *
   * @return false if memory allocation fails, true otherwise.
   */
  @Override
  public boolean allocateNewSafe() {
    try {
      allocateNew(lastValueAllocationSizeInBytes, lastValueCapacity);
      return true;
    } catch (Exception e) {
      return false;
    }
  }

  /**
   * Allocate memory for the vector to support storing at least the provided number of elements in
   * the vector. This method must be called prior to using the ValueVector.
   *
   * @param totalBytes desired total memory capacity
   * @param valueCount the desired number of elements in the vector
   * @throws org.apache.arrow.memory.OutOfMemoryException if memory allocation fails
   */
  @Override
  public void allocateNew(long totalBytes, int valueCount) {
    assert totalBytes >= 0;

    checkDataBufferSize(totalBytes);
    computeAndCheckOffsetsBufferSize(valueCount);

    /* we are doing a new allocation -- release the current buffers */
    clear();

    try {
      allocateBytes(totalBytes, valueCount);
    } catch (Exception e) {
      clear();
      throw e;
    }
  }

  @Override
  public void allocateNew(int valueCount) {
    allocateNew(lastValueAllocationSizeInBytes, valueCount);
  }

  /* Check if the data buffer size is within bounds. */
  private void checkDataBufferSize(long size) {
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