On Sunday, July 31, 2016 at 5:29:24 AM UTC+2, Paul Stockley wrote:
>
> I have a couple of different issues with the new RC1 build. On my mac 
> project, I get the following error when starting devmode from the initellij 
> debug launch config
>
> The code server is ready at http://127.0.0.1:9876/
> Code server started in 20.08 s ms
> 2016-07-30 23:18:40.674:INFO:oejs.ServerConnector:main: Started 
> ServerConnector@62d60234{HTTP/1.1}{127.0.0.1:9876}
> 2016-07-30 23:18:40.674:INFO:oejs.Server:main: Started @21690ms
> 2016-07-30 23:18:40.834:INFO:oejs.Server:main: jetty-9.2.z-SNAPSHOT
> 2016-07-30 23:18:44.933:WARN:oejuc.AbstractLifeCycle:main: FAILED 
> c.g.g.d.s.j.WebAppContextWithReload@77a2f454{/,file:/Users/paul/Library/Caches/IntelliJIdea2016.2/gwt/react.cb437975/git-hub-work.1e824b8/run/www/,STARTING}{/Users/paul/Library/Caches/IntelliJIdea2016.2/gwt/react.cb437975/git-hub-work.1e824b8/run/www}:
>  
> java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider 
> org.eclipse.jetty.apache.jsp.JuliLog not a subtype
> java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider 
> org.eclipse.jetty.apache.jsp.JuliLog not a subtype
>

I'd say you have apache-jsp libs in your 
WEB-INF/lib: https://github.com/gwtproject/gwt/issues/9343

On a much larger project on Windows, again using Intellj I get the 
> following error
>
> Connected to the target VM, address: '127.0.0.1:55385', transport: 
> 'socket'
> Exception in thread "main" java.lang.IncompatibleClassChangeError: 
> Implementing class
>
[…] 

> at java.lang.Class.forName(Class.java:348) at 
> com.google.gwt.dev.DevMode$ArgHandlerServer.setString(DevMode.java:179)
> at 
> com.google.gwt.util.tools.ArgHandlerString.handle(ArgHandlerString.java:26)
> at com.google.gwt.util.tools.ToolBase.processArgs(ToolBase.java:291)
> at 
> com.google.gwt.dev.ArgProcessorBase.processArgs(ArgProcessorBase.java:30)
> at com.google.gwt.dev.DevMode.main(DevMode.java:425)
>

That could be an incompatibility between libs. Given that this happens in 
ArgHandlerServer and with its default value (ToolBase#processArgs at line 
291), I'd say maybe you have dependencies on other Jetty libs with versions 
different from the one used by GWT. AFAICT, Jetty really requires all its 
libs to be from the exact same version, as things could break even between 
minor (or even "patch") versions if you mix them.
 

> Disconnected from the target VM, address: '127.0.0.1:55385', transport: 
> 'socket'
>
> I suspect it is something dumb on my part. It was working OK with a 
> significantly earlier snapshot build.
>

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