Maven and jetty classpath

[ml...@planwerk6.de]

Hi,

i have  strange classLoader problem. I use maven, eclipse and jetty. 

i want to write a functional test with htmlunit, something like shown here 

http://today.java.net/pub/a/today/2007/04/12/embedded-integration-testing-of-web-applications.html

i start a jetty container with

	private static Server startServer ( ) throws Exception
	{
		// 0 means assign any free port
		Server server = new Server(0);
		server.addHandler(new WebAppContext("target/myproject", ""));
		server.start();
		// getLocalPort returns the port that was actually assigned
		port = server.getConnectors()[0].getLocalPort();
		return server;
	}

jetty starts up fine. 
but now i want to get the WebApplicationContext from the spring like this 

    WebAppContext jettyCtx = (WebAppContext) server.getHandler();
    ServletContext sc = jettyCtx.getServletHandler().getServletContext();
    String key = WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE;
    System.out.println(sc.getAttribute(key).getClass());
    WebApplicationContext ctx = (WebApplicationContext) sc.getAttribute(key);

it prints:
  class org.springframework.web.context.support.XmlWebApplicationContext
and throws then a 
  ClassCastException
But XmlWebApplicationContext IS A WebApplicationContext, so it SHOULD be 
castable

The problem is, that i have all my maven dependencies on the classpath (either 
running from mvn test or inside eclipse), but jetty seems to use a different 
classLoader which loads the classes from WEB-INF/lib

So the XmlWebApplicationContext is from target/WEB-INF/lib ClassLoader and is 
in a different "class Loader hierarchie"?? 

I dont understand much of classloaders. but if i delete all jar files from 
WEB-INF/lib, it works fine. I know this question is not directly related to 
maven but i don't have any clue how to fix it and where to ask.

I want my testcase to try to load its classes from target/WEB-INF/lib falling 
back to maven dependencies.

How can i manipulate the classLoader at runtime and advise it to look first in 
WEB-INF/lib ?

any help is very appreciated

kind regards,
janning


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Re: Maven and jetty classpath

[ml...@planwerk6.de]

Am Donnerstag, 19. Juli 2007 19:53 schrieb mljv@planwerk6.de:
> Hi,
>
> i have  strange classLoader problem. I use maven, eclipse and jetty.
>
> i want to write a functional test with htmlunit, something like shown here
>
> http://today.java.net/pub/a/today/2007/04/12/embedded-integration-testing-o
>f-web-applications.html
>
> i start a jetty container with
>
> 	private static Server startServer ( ) throws Exception
> 	{
> 		// 0 means assign any free port
> 		Server server = new Server(0);
> 		server.addHandler(new WebAppContext("target/myproject", ""));
> 		server.start();
> 		// getLocalPort returns the port that was actually assigned
> 		port = server.getConnectors()[0].getLocalPort();
> 		return server;
> 	}
>
> jetty starts up fine.
> but now i want to get the WebApplicationContext from the spring like this
>
>     WebAppContext jettyCtx = (WebAppContext) server.getHandler();
>     ServletContext sc = jettyCtx.getServletHandler().getServletContext();
>     String key =
> WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE;
> System.out.println(sc.getAttribute(key).getClass());
>     WebApplicationContext ctx = (WebApplicationContext)
> sc.getAttribute(key);
>
> it prints:
>   class org.springframework.web.context.support.XmlWebApplicationContext
> and throws then a
>   ClassCastException
> But XmlWebApplicationContext IS A WebApplicationContext, so it SHOULD be
> castable

i fixed it myself by giving jetty a different directory:
    server.addHandler(new WebAppContext("src/main/webapp", ""));

kind regards,
Janning


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