The Java version of extended VTD-XmL is released and available for download. This version supports 256 GB max file sizes and memory mapped capabilities. The updated documentation is also available for download. In short, you can basically do full XPath query on documents that are bigger than memory space available on your machine.
A special thanks to Duane May who provided value suggestions and inputs and helped refine the VTD specs to make this happen. To download the package and the documentation, go to https://sourceforge.net/project/downloading.php?group_id=110612&use_mirror=&filename=vtd-xml_2.4_doc.zip&64621261 https://sourceforge.net/project/downloading.php?group_id=110612&use_mirror=&filename=ximpleware_extended_2.4.zip&99532507