Can you elaborate here, or in the issue tracker, on what doesn't work, or 
provide some example projects that demonstrate the issue? 

Decoupling GWT from the server it internally uses is likely a first step 
but could never be a last one - cases like this will continue to break if 
the server application ever shares any classes with anything on the server 
classpath - any wrong version of apache commons, JDT, htmlunit, etc could 
come back and bite us later if we don't have proper isolation. Servlet 
containers have successfully isolated running applications from each other 
for decades, and applications that understand they are being isolated in 
this way must recognize certain limitations, so this should be a relatively 
solved problem.

On Thursday, April 3, 2025 at 1:25:20 PM UTC-5 [email protected] wrote:

> After having discovered further classpath/classloader complications trying 
> to use my custom launchers within actual applications,
> I am leaning towards deciding to postpone further efforts,
> until Jetty gets decoupled from GWT.
>
> I will update if I discover any workaround that could keep the current 
> effort going.
>
>
> On Wednesday, 26 March 2025 at 08:15:59 UTC [email protected] wrote:
>
> 0.0.17 
> <https://central.sonatype.com/artifact/io.bitbucket.upperlimit-public/GWT-DevMode-server.BOM/0.0.17>
>  has 
> been published to Maven central.
>
> see 
> https://bitbucket.org/upperlimit-public/gwt-devmode-server/src/f5ed6ab9a21ebb737468e0e3f6d6e73f7f664662/?at=release%2F0.0.17
>  for 
> details
>
> Keep watching Maven Central 
> <https://central.sonatype.com/artifact/io.bitbucket.upperlimit-public/GWT-DevMode-server.BOM>
>  and project home 
> <https://bitbucket.org/upperlimit-public/gwt-devmode-server/src> regularly 
> for updates.
>
> On Tuesday, 25 March 2025 at 15:28:27 UTC [email protected] wrote:
>
> 0.0.12 
> <https://bitbucket.org/upperlimit-public/gwt-devmode-server/src/47701b48b416d20aae0ee239468d569928a95d6b/?at=release%2F0.0.12>
>  is 
> out, supporting Jetty12 (ee10)
>
> On Tuesday, 18 March 2025 at 13:01:59 UTC [email protected] wrote:
>
> I have published the first version of the DevMode server implementations 
> to Maven Central at 
> https://central.sonatype.com/search?q=o.bitbucket.upperlimit-public
>
> <groupId>io.bitbucket.upperlimit-public</groupId>
>
> <artifactId>GWT-DevMode-server.impl.embedded.Jetty9.javax</artifactId> Server 
> class 
> net.upperlimit.tools.GWT.DevMode.server.impl.embedded.launcher.Jetty9.DevModeServerLauncher
>
> <artifactId>GWT-DevMode-server.impl.embedded.Jetty10.javax</artifactId>
> Server class 
> net.upperlimit.tools.GWT.DevMode.server.impl.embedded.launcher.Jetty10.DevModeServerLauncher
>  
> <artifactId>GWT-DevMode-server.impl.embedded.Jetty11.jakarta</artifactId> 
> Server 
> class 
> net.upperlimit.tools.GWT.DevMode.server.impl.embedded.launcher.Jetty11.DevModeServerLauncher
> <artifactId>GWT-DevMode-server.impl.Cargo.installed.Jetty9.javax</artifactId> 
> Server class 
> net.upperlimit.tools.GWT.DevMode.server.impl.Cargo.installed.Jetty9.javax.DevModeServerLauncher
>
> <artifactId>GWT-DevMode-server.impl.Cargo.installed.Jetty10.javax</artifactId>
> Server class 
> net.upperlimit.tools.GWT.DevMode.server.impl.Cargo.installed.Jetty10.javax.DevModeServerLauncher
>  
>  
> <artifactId>GWT-DevMode-server.impl.Cargo.installed.Jetty11.jakarta</artifactId>
>  
> Server class 
> net.upperlimit.tools.GWT.DevMode.server.impl.Cargo.installed.Jetty11.jakarta.DevModeServerLauncher
>
> Jetty12 implementation is facing a few obstacles but I am working on it...
>
> For those interested in experimentation, use DevMode with "-server" 
> parameter set to the desired server implementation class in your GWT Plugin 
> launch configuration and run.
>
> The server implementations under the "embedded" package run in the same 
> JVM as DevMode but with isolated classpath, using a child-first class 
> loader.
> This approach make classpath fixes possible because the servlet container 
> runs in the same JVM as DevMode.
>
> The server implementations under the "installed" package start a servlet 
> container on a separate JVM, which you can debug by passing the 
> :debuggerPort=<port> option to the "-server" parameter.
> This approach cannot deal with classpath issues because the servlet 
> container is running on a separate JVM.
>
> I intend to create alternative Jetty embedded implementations as soon as 
> we manage to decouple Jetty from GWT.
>
> I can create more server implementations upon request but I would suggest 
> caution not to create more than actually needed.
>
> Let me know your thoughts.
>
> On Thursday, 6 March 2025 at 20:56:50 UTC [email protected] wrote:
>
> Good point.
>
> Indeed, not too many kinds of servlet containers are needed.
>
> I have implemented embedded Jetty9, Jetty10 and Jetty11 so far.
>
> I am currently working on embedded Jetty12 with EE10 and I would consider 
> EE8, EE9 and future variants.
>
> We could choose to make any of these official somehow.
>
> On Thursday, 6 March 2025 at 19:18:36 UTC Jens wrote:
>
> +1 to adopting and maintaining official implementations (disclaimer: 
> knowing that I won't maintain them myself, but) not having at least "some" 
> official implementations would likely be a show stopper; maybe only have a 
> couple official implementations though, with limited scope (like nowaday's 
> JettyLauncher), and leave the others as "third parties"? (also makes it 
> easier to "abandon" some when/if hardly anybody uses them and/or they 
> become a burden to maintain; and provide more guarantees for the "official" 
> ones?)
>
>
> I agree that an official implementation should not cover all kinds of 
> servlet containers. The more are supported officially the less an argument 
> can be made to not support additional servlet containers (Where to draw the 
> line?). For every officially supported servlet container implementation 
> someone needs to track the releases, etc. 
>
> Personally I would only provide Jetty 12 as the  single official 
> implementation because it supports EE8, EE9 and EE10 via configuration. 
> That keeps the maintenance burden low while covering EE8-10 and possibly 
> future EE versions. It also matches what GWT offers out of the box today. 
>
> -- J.
>
>

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