RMIIO RMIIO is a library which makes it as simple as possible to stream large amounts of data using the RMI framework (or any RPC framework for that matter). Who needs this? Well, if you have ever needed to send a file from an RMI client to an RMI server, you have faced this problem. And, if you did manage to implement a basic solution, it probably threw an OutOfMemoryError the first time someone tried to send a 2GB file. Due to the design of RMI, this common and deceptively simple problem is actually quite difficult to solve in an efficient and robust manner. The RMI framework makes it very easy to implement remote communication between java programs. It takes a very difficult problem (remote communication) and presents a fairly easy to use solution. However, the RMI framework is designed around sending and receiving groups of objects which are all immediately available in memory. How do you send a file from the client to the server without blowing out memory on the client or the server? The tools and APIs in the standard java runtime do not have any ready solutions to this problem, yet many people have encountered it. What you really want to do is stream data from the client to the server (you have an InputStream, right?) using a framework which does not really expose a streaming model. The RMIIO library was written to fill in that missing gap in the RMI framework. It provides some very powerful classes which enable a client to stream data to the server using only a few extra lines of code. Please note that the GitHub repository is a mirror of the main project repository which is hosted on SourceForge: Homepage: http://openhms.sourceforge.net/rmiio/ Project: https://sourceforge.net/projects/openhms/