Over the wire

Jetty 9 released, bringing SPDY and WebSocket support

Elliot Bentley

Next-generation protocols are the main focus of new release, bringing high speeds and low-latency connections.

latest version of popular Java web server Jetty has been officially
, bringing with it much-anticipated support for SPDY
and WebSocket protocols.

originally outlined last August
, Jetty 9 brings a host of small
changes in addition to delivering two hyped technologies. SPDY is
Google’s reworking of the HTTP protocol which allows for
multiplexed requests and the ability to ‘push’ resources, among
other speed-boosting improvements.

The WebSocket protocol, meanwhile, allows for permanent connections
between the browser (or other client) and server with very low
latency. While SPDY is only so far implemented by modern versions of Firefox and
, almost all modern browsers now feature support for

Under the hood, the I/O layer has been “completely overhauled” as
part of the adoption of SPDY and WebSockets. It’s said to provide
both faster speeds and make it easier for Jetty’s developers to add
new protocols in the future.

Like its predecessor, Jetty 9 only supports Servlet API 3.0,
although a future minor update is promised once version
– which includes non-blocking IO – is released. Meanwhile,
JSP support has been kept up to date, with an upgrade to
unnoteworthy maintenance version, 2.2.

For early adopters eager to try it out, Jetty 9 is available to
download now
. The new release requires Java 1.7 or newer – but
SE 6 has now passed its end-of-life date
, that shouldn’t be an
issue for anyone, right?

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