* if we have troubles during the clone.
*/
private MeshData copyMeshData(final MeshData meshData) throws IOException {
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
final BinaryExporter exporter = new BinaryExporter();
exporter.save(meshData, bos);
bos.flush();
final ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
final BinaryImporter importer = new BinaryImporter();
final Savable sav = importer.load(bis);
return (MeshData) sav;