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Jetty/Starting/Porting to Jetty 7

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Introduction

The intent of jetty-7 is to allow users to transition to the updated architecture and to access some servlet-3.0 features within a servlet 2.5 container, but without the need to update java 1.6 or to wait for the final specification.

Jetty 7 is not a drop-in replacement for Jetty 6. While Jetty 7 has very much the same architecture as Jetty 6, there are packaging changes and other minor tweaks between the versions. Also, the Jetty 7 milestones are not as full featured as Jetty 6 in terms of 3rd party integrations being available by default with the distribution bundle.

If your application adheres to standards, porting to Jetty 7 should simply be a matter of updating your configuration files. However, if your application uses non-standard or Jetty-specific APIs, then additional porting work will be required. This page gives a brief overview of the changes needed to port to Jetty 7.

Jetty 7 @ Eclipse, Jetty 7 @ Codehaus

The core Jetty 7 modules have all moved to Eclipse, but some Jetty integrations (e.g., jetty-maven-plugin, terracotta, wadi) and distributions (e.g., deb, rpm, hightide) still remain at codehaus. If you are looking for these, see codehaus trunk.

Renaming of Classes and Packages

The Jetty 7 codebase was moved to the org.eclipse.jetty.* package space and remodularized so that dependencies for client, server and servlet container are more separable. We have written a converter tool to ease the conversion of your application source and configuration files to use the new package space: Upgrade from Jetty 6 to Jetty 7.

A quick overview of the general refactoring is here:

Renamed packages and classes
Jetty 6 Package/Class Matching Jetty 7 Package/Class Similar Jetty 7 Package/Class
org.mortbay.* org.eclipse.jetty.*
org.mortbay.jetty.* org.eclipse.jetty.*
org.mortbay.util.ajax.* org.eclipse.jetty.json.*
org.morbay.log.* org.eclipse.jetty.util.log.*
org.mortbay.jetty.security.UserRealm org.eclipse.jetty.security.LoginService
org.mortbay.jetty.security.HashUserRealm org.eclipse.jetty.security.HashLoginService
org.mortbay.jetty.servlet.Context org.eclipse.jetty.servlet.ServletContextHandler
org.mortbay.util.ajax.Continuation org.eclipse.jetty.continuation.Continuation
org.mortbay.util.ajax.ContinuationSupport org.eclipse.jetty.continuation.ContinuationSupport
Other refactoring changes to watch out for when moving to Jetty 7
Type of change Jetty 6 Jetty 7
Maven plugin artifact id maven-jetty-plugin jetty-maven-plugin
Split up server JAR jetty.jar
  • jetty-server.jar

For a complete list of changes, see Porting to Jetty 7/Refactoring

Architectural Changes

Configuration

Handlers

Startup Options

Continuations

Jetty 7 introduces portable continuations, which are meant to

Cometd

Licenses

Jetty Version Comparison Table

Note: cometd server is not shipped within the Jetty distribution, it can be obtained from the cometd.org website.



Additional Resources