Thanks Jan. Much appreciated!

I'll try to clarify the flow a bit more.

My main thread creates and starts the Jetty Server - as attached in
Jetty_Server.txt
Once Server is started, it spawns x number of threads depending on the
number of contexts I have to deploy in the server [ whats attached in
Jetty_Context.txt , which basically is creating instances of
org.eclipse.jetty.webapp.WebAppContext and attaching to HandlerCollection
of the Server. ] What we are trying to achieve is an hot deploy of sorts in
to HandlerCollection. And if I understand correctly, HandlerCollection is
mutable which would allow hot deploy.

Now, as you mentioned, if it's allowed only in Single thread, then Yes, I
would have a problem. Where can I find a confirmation to this without
burning my fingers, you think?
Just FYI , I have tried out the single thread, multiple context approach
and that works. No handlerCollection here, just keeping on
adding WebAppContext to HandlerList.

I will try out your suggestion of adding HandlerCollection to HandlerList
rather than the other way around.

Thanks,
Varsha





On Tue, Apr 12, 2016 at 2:16 PM, Jan Bartel <[email protected]> wrote:

> Varsha,
>
> I'm not sure how those two code snippets you attached relate to each
> other, but some observations:
>
>  * A HandlerList is not the same thing as a ContextHandlerCollection.
> Normally, if you're creating multiple contexts you would add them to a
> ContextHandlerCollection (which itself is added to a HandlerList). The
> ContextHandler collection has significant behavioural differences to a
> HandlerList. Have a read of
> http://www.eclipse.org/jetty/documentation/current/architecture.html for
> some pointers on that.
>
> * I don't think that simultaneous deployment of webapps is particularly
> supported - usually the deployment process is single threaded so it's
> possible you might hit some funky behaviour.
>
> cheers
> Jan
>
> On 11 April 2016 at 14:47, Varsha Gopal <[email protected]> wrote:
>
>>
>> Any pointers for the below query?
>>
>> ---------- Forwarded message ----------
>> From: Varsha Gopal <[email protected]>
>> Date: Thu, Apr 7, 2016 at 11:47 AM
>> Subject: Need Help with Embedded Jetty - Adding multiple context through
>> Mutable Handle Collection
>> To: [email protected]
>>
>>
>> Is it right to start a jetty instance with no context specified and no
>> context handler, then keep adding context to it once the server has
>> started. Although I was able to do this using mutable HandlerCollection and
>> the logs says the Server and the Contexts are Started and Available, I am
>> not able to access it with a URL with the context [ Not Found error / 404].
>>
>> Should we add at least one root context and contexthandler to the server
>> while starting it?
>>
>> My main thread starts the server. Post that it will spawn couple of
>> threads which each creates WebAppContext and start them.
>>
>> My jetty version is 9.3.7.v20160115
>>
>> Bit of the code where I am starting the server and contexts are attached,
>> along with few inline comments
>>
>> P.S If I start Server and context in one go without any
>> handlercollection, i.e each context in its own server instance and finally
>> just start the server, it's working. I am able to access it with the
>> contextpath for the same jars in the classpath.
>>
>> Thanks in advance,
>> Varsha
>>
>>
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>
>
>
> --
> Jan Bartel <[email protected]>
> www.webtide.com
> *Expert assistance from the creators of Jetty and CometD*
>
>
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