GeoTIFF writer can't write very large files

The GeoTIFF writer writeRasterData is encountering an integer boundary when writing large files

The fix is to make sure the index variables are long

public void writeBandRasterData(final Band sourceBand,
                                    final int regionX,
                                    final int regionY,
                                    final int regionWidth,
                                    final int regionHeight,
                                    final ProductData regionData,
                                    ProgressMonitor pm) throws IOException {
        if (!tempProduct.containsBand(sourceBand.getName())) {
            throw new IllegalArgumentException("'" + sourceBand.getName() + "' is not a band of the product");
        }
        final int bandDataType = ifd.getBandDataType();
        final int stripIndex = getStripIndex(sourceBand);
        final TiffValue[] offsetValues = ifd.getEntry(TiffTag.STRIP_OFFSETS).getValues();
        final long stripOffset = ((TiffLong) offsetValues[stripIndex]).getValue();
        final TiffValue[] bitsPerSampleValues = ifd.getEntry(TiffTag.BITS_PER_SAMPLE).getValues();
        final long elemSize = ((TiffShort) bitsPerSampleValues[stripIndex]).getValue() / 8;
        final long sourceWidthBytes = sourceBand.getSceneRasterWidth() * elemSize;
        final long regionOffsetXInBytes = regionX * elemSize;
        final long pixelOffset = sourceWidthBytes * regionY + regionOffsetXInBytes;
        final long startOffset = stripOffset + pixelOffset;

        pm.beginTask("Writing band '" + sourceBand.getName() + "'...", regionHeight);
        try {
            for (int y = 0; y < regionHeight; y++) {
                ios.seek(startOffset + y * sourceWidthBytes);
                final int stride = y * regionWidth;
                if (bandDataType == ProductData.TYPE_UINT8) {
                    final byte[] data = new byte[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = (byte) regionData.getElemUIntAt(stride + x);
                    }
                    ios.write(data);
                } else if (bandDataType == ProductData.TYPE_INT8) {
                    final byte[] data = new byte[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = (byte) regionData.getElemIntAt(stride + x);
                    }
                    ios.write(data);
                } else if (bandDataType == ProductData.TYPE_UINT16) {
                    final short[] data = new short[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = (short) regionData.getElemUIntAt(stride + x);
                    }
                    ios.writeShorts(data, 0, regionWidth);
                } else if (bandDataType == ProductData.TYPE_INT16) {
                    final short[] data = new short[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = (short) regionData.getElemIntAt(stride + x);
                    }
                    ios.writeShorts(data, 0, regionWidth);
                } else if (bandDataType == ProductData.TYPE_UINT32) {
                    final int[] data = new int[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = (int) regionData.getElemUIntAt(stride + x);
                    }
                    ios.writeInts(data, 0, regionWidth);
                } else if (bandDataType == ProductData.TYPE_INT32) {
                    final int[] data = new int[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = regionData.getElemIntAt(stride + x);
                    }
                    ios.writeInts(data, 0, regionWidth);
                } else if (bandDataType == ProductData.TYPE_FLOAT32) {
                    final float[] data = new float[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = regionData.getElemFloatAt(stride + x);
                    }
                    ios.writeFloats(data, 0, regionWidth);
                } else if (bandDataType == ProductData.TYPE_FLOAT64) {
                    final double[] data = new double[regionWidth];
                    for (int x = 0; x < regionWidth; x++) {
                        data[x] = regionData.getElemDoubleAt(stride + x);
                    }
                    ios.writeDoubles(data, 0, regionWidth);
                }
                pm.worked(1);
            }
        } finally {
            pm.done();
        }
    }

Thanks
Luis