The com.oreilly.servlet package contains a set of useful utility classes for servlet developers. Included are classes to help servlets parse parameters, handle multipart requests (file uploads), generate multipart responses (server push), negotiate locales for internationalization, return files, manage socket connections, and act as RMI servers, among other things. There's even a class to help applets communicate with servlets. The package was developed by Jason Hunter for his book "Java Servlet Programming" published by O'Reilly. See: