Web Application Specifications

Overview

This section provides a list of API specifications which are implemented by Apache Tomcat.

The specifications are developed and maintained by the Java Community Process (JCP). The members of the JCP are coming from software industry, other organizations like the Apache Software Foundation (ASF), educational institutions but include also individual (personal) members.

Each specifications starts its life as a so-called Java Specification Request JSR. The JSRs are also known by the unique number they receive once the specification process starts. On the web site of the JCP you can find an overview page for each spec, and a separate download page. The download page lists various stages of each spec reflecting the development process of JCP specs. Examples are "Early Draft Review", "Public Final Draft" and "Final Release". You would like to make sure that you always access the latest documents.

Different Tomcat versions implement different versions of the specifications (see main site, wiki).

Java Servlet Specifications

Servlet 3.0 specification is JSR 315.

Servlet 2.5 is a maintenance release of Servlet 2.4. Both are JSR 154.

JavaServer Pages and Expression Language Specifications

JSP 2.2 is a maintenance release of JSP 2.1. Both are part of JSR 245.

JSP 2.0 is JSR 152.

Expression Language was covered by JSP 2.0 and JSP 2.1 specifications, but became a separate document starting with JSP 2.2.

See Also

• Tomcat Versions
• Which Tomcat Version Do I Want
  
  

Protocol Specifications

The following are specifications for the web protocols supported by Tomcat.

HTTP

AJP

The AJP protocol specification lives on the Apache Tomcat Connectors web site.

SPDY

TBD

draft-mbelshe-httpbis-spdy-00 (Draft 3), Expires: August 4, 2012

List of protocol specifications, at dev.chromium.org

WebSocket

WebSocket protocol is specified by RFC 6455.

CategoryFAQ