1 - jo! 1.1 jo! is a pure Java Web server that implements the Servlet API, JSP, and HTTP/1.1. It features advanced thread management, virtual hosts, memory-sensitive file cache, authentication using a role abstraction, automatic compressed transfer of text or HTML files, auto internationalization, auto servlet and JSP reloading, auto reload of WARs, hot deployment of WARs, JSR-45 support, and an easy-to-use Swing console. License: Shareware OS: Unix