Autojar helps create jar files of minimal size from different inputs (classes, external archives, etc.). It starts from one or more given classes (e.g., an applet), recursively searches the bytecode for references to other classes, extracts these classes from the input archives, and copies them to the output. The resulting archive will only contain the classes that are really needed, so the size and loading time of applets can be kept low, and applications can be made independent of installed libraries. In a similar way, Autojar can search directories and archives for other resources like image files, extract them, and copy them to the output.
