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Date: Wed, 16 Jul 2008 18:24:31 +0530
From: quikpak <quikpak@sltnet.lk>
Subject: Re: Embedded Tomcat
To: Tomcat Users List <users@tomcat.apache.org>
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References: <5dd474260807150859q5c44e613yf3b1ad83ab75dd5c@mail.gmail.com>
 <4B8C80F59C4E0E4AB59F4006D8F0257E02432784@dojexch01.doj.state.wi.us>
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i dont want tomcat mails hereafter because im not a member...........
----- Original Message -----
From: "Joe Walker" <joe@getahead.org>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Wednesday, July 16, 2008 3:03 PM
Subject: Re: Embedded Tomcat


> Thanks for the reply - I've been doing some digging into where the NPE
> happens, and while I'm sure it has something to do with my Embedded setup
> (it works just fine when I point a full Tomcat at the war file using a
> Context file), there are other things I need to look at, which are nothing
> to do with Embedding - I'll start another thread on CometProcessor, and
> maybe come back to this once I'm sure that comet isn't to blame.
>
> Thanks,
>
> Joe.
>
>
> On Tue, Jul 15, 2008 at 6:00 PM, Radcliffe, William H. <
> RadcliffeWH@doj.state.wi.us> wrote:
>
> > Joe wrote:
> >
> > > I'm not getting any exceptions on startup, and the exact war file that
> > I'm
> > pointing is found because it's serving HTML
> > > and even my servlet just fine.
> > > But when I get a ServletContext, it's null. I've got a set of tomcat
jars
> > in the classpath (catalina, annorations-api,
> > > tomcat-coyote, tomcat-juli, servlet-api)
> >
> >
> > I don't know if you are crossing contexts or not, but it doesn't look
like
> > you setCrossContext(true) on the context you created.  Should you?
> >
> > The API only says the following for setCrossContext(boolean
crossContext):
> > "Set the "allow crossing servlet contexts" flag."  However, the Tomcat
> > configuration reference seems to state that all calls to getContext will
> > return null unless you set the context's crossContext parameter to true.
> > When the parameter is true, the configuration reference specifically
states
> > that other contexts will have access through the
> > ServletContext.getContext()
> > method.  When it is set to false, the reference no longer mentions other
> > contexts, it states that getContext() will always return null.  I'm
> > assuming
> > that the setCrossContext method and crossContext parameter have the same
> > effect.
> >
> > I don't know if any of this applies in your case.
> >
> >
> >
> > From http://tomcat.apache.org/tomcat-6.0-doc/api/index.html:
> >
> > setCrossContext
> > public void setCrossContext(boolean crossContext)Set the "allow crossing
> > servlet contexts" flag.
> >
> > Specified by:
> > setCrossContext in interface Context
> > Parameters:
> > crossContext - The new cross contexts flag
> >
> >
> >
> > From http://tomcat.apache.org/tomcat-6.0-doc/config/context.html:
> >
> > crossContex:  Set to true if you want calls within this application to
> > ServletContext.getContext() to successfully return a request dispatcher
for
> > other web applications running on this virtual host. Set to false (the
> > default) in security conscious environments, to make getContext() always
> > return null.
> >
> > Bill
> >
> > -----Original Message-----
> > From: joseph.walker@gmail.com [mailto:joseph.walker@gmail.com] On Behalf
> > Of
> > Joe Walker
> > Sent: Tuesday, July 15, 2008 10:59 AM
> > To: users@tomcat.apache.org
> > Subject: Embedded Tomcat
> >
> > Maybe I missed some docs somewhere, but my embedded Tomcat isn't working
> > properly.
> > I doing essentially this:
> >
> > Embedded embedded = new Embedded();
> >
> > embedded.setCatalinaBase(".");
> >
> > Engine engine = embedded.createEngine();
> >
> >
> > Host host = embedded.createHost("localhost", ".");
> >
> > engine.addChild(host);
> >
> > Context context = embedded.createContext("/dwr", "target/ant/web/demo");
> >
> > host.addChild(context);
> >
> >
> > embedded.addEngine(engine);
> >
> >
> > Connector connector = embedded.createConnector("localhost", 8080,
false);
> >
> > embedded.addConnector(connector);
> >
> > embedded.start();
> >
> > And my web-app starts OK, however the ServletContext seems to be null,
so
> > the
> > web-app fails.
> >
> > I'm not getting any exceptions on startup, and the exact war file that
I'm
> > pointing is found because it's serving HTML and even my servlet just
fine.
> > But when I get a ServletContext, it's null. I've got a set of tomcat
jars
> > in
> > the classpath (catalina, annorations-api, tomcat-coyote, tomcat-juli,
> > servlet-api)
> >
> > Any clues where to look?
> >
> > Joe.
> >
> > ---------------------------------------------------------------------
> > To start a new topic, e-mail: users@tomcat.apache.org
> > To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> > For additional commands, e-mail: users-help@tomcat.apache.org
> >
> >
>


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