Comments on: Executable WARs with Jetty

By: Paolo Milani

Paolo Milani — Tue, 28 Feb 2012 10:08:53 +0000

In short, I lost the WAR — but won the battle
The only benefit of packaging a WAR in such a configuration is to build a single artifact that supports 2 different environments.
More precisely a WAR is a particularly structured package that is understood by a standard JEE servlet container.
We don’t need to support a servlet container anymore as we are migrating this app out of a JBoss.
In the case of running an embedded Jetty server, you can get away much more easily by creating a “uber-jar”.
I used the maven-shade-plugin for that, I found it easier and more controllable than the assembly plugin or onejar.

Hope this gives you some ideas,
cheers

By: U Wieske

U Wieske — Mon, 27 Feb 2012 20:07:24 +0000

Paolo,

I have the same thoughts as you, about the “hacky” part. Have you already found another alternative for the aforementioned solution?
I keep on getting the same references to the “Start” example solution on Internet.

I wonder…. can these alien resources (classes in the root of this webapp) be served as response of a HTTP request? ….. :-/

By: Paolo Milani

Paolo Milani — Sun, 12 Feb 2012 16:26:23 +0000

I was doing this myself, as I was also inspired by Hudson/Jenkins.
It seems the only way to support loading via “java -jar” requires to put the main .class and its dependencies in the “root” of the WAR, as it needs to be found via “Main-Class” attribute in MANIFEST.MF.
I can’t get over the fact that sorting out the package structure is hacky.

If anybody knows a different solution, please share!

Anyway, the getProtectionDomain() trick is pretty neat.

By: Jan Nielsen

Jan Nielsen — Fri, 16 Sep 2011 06:58:55 +0000

And how do you get support for JSP?

I get this: “NO JSP Support for /, did not find org.apache.jasper.servlet.JspServlet”

I have no idea of how to pass in the option, like this: $ java -jar jetty.jar OPTIONS=Server,jsp from
http://manolocarrasco.blogspot.com/2009/09/tip-enabling-jsp-support-in-jetty700.html

By: Frederik Heick

Frederik Heick — Fri, 29 Apr 2011 11:59:24 +0000

But how do you build it?
What goal do you use and what dependencies is nessecary?

Need a bit more info.

So if I have Maven project which generates a war file.
How do I make it executable with Jetty.?

By: Michael Vorburger

Michael Vorburger — Wed, 30 Mar 2011 22:06:39 +0000

Note the executable-war-archetype , used as starting-point in the http://Mifos.org WAR, see http://goo.gl/nwZNE.

By: Krish Dasari

Krish Dasari — Wed, 12 Jan 2011 20:00:05 +0000

Thanks for the tip. I got inspired and did a proof of concept to build an executable war using maven, grails and jetty.
Notes is available @ krishnadasari.blogspot.com

By: Leonard Axelsson

Leonard Axelsson — Thu, 17 Dec 2009 18:39:23 +0000

Thanks for the tip, probably saved me a lot of time

Used your example as the base for a gradle script that takes a war and “jettyfies” it. Might be interesting to someone: http://bit.ly/standalone-war

By: Fernnado

Fernnado — Wed, 14 Oct 2009 17:06:52 +0000

Maybe you should get this into the maven-jetty-plugin, as an option to publish an executable war file

By: Manuel Woelker

Manuel Woelker — Tue, 13 Oct 2009 17:45:57 +0000

Good call, Tim. Fixed now. To be honest nowadays I don’t import anything, I just Ctrl-Shift-O it.