The Jakarta Commons HTTP Client component supports the client-side of RFC 1945 (HTTP/1.0) and RFC 2616 (HTTP/1.1), several related specifications (RFC 2109 (Cookies), RFC 2617 (HTTP Authentication), etc.), and provides a framework by which new request types (methods) or HTTP extensions can be easily created.
Jakarta Slide is a content management system composed of multiple modules tied together using the WebDAV protocol. It includes a content management system with a Java API, a servlet implementing the WebDAV protocol on top of the content management system, a Java WebDAV and HTTP client library, and a WebDAV command line client.
JXV (Java XML View) is a library which allows for Java objects to be given "XML Views", and for those views to be read back into objects. It supports both SAX and DOM output, and can read XML input from any SAX-compliant parser. Resulting DOM trees are dynamic, and reflect changes made to the object model even after they were created. It fully supports namespaces in its XML views, and can correctly parse and read XML content with namespaces. It also uses a pluggable architecture which allows XML view factories to be configured and loaded at runtime.
JaxMe is a Java/XML binding framework based on SAX2. It consists of a set of code generators that read an XML schema and generate code for parsing conformant XML documents into corresponding Java objects, saving those objects into a database or, vice versa, reading such Java objects from a database and converting them into XML. JaxMe supports namespaces, relational databases, and Tamino. JaxMe comes with an integrated application framework and a generator for EJB entity beans with BMP (bean managed persistence).