Hi all,

I am trying to integrate GWT in a given spring boot project (Kurento Room 
<https://github.com/Kurento/kurento-room>). Everything looks good until I 
launch SpringBoot. The error that I see is:

*Caused by: java.lang.IncompatibleClassChangeError: Implementing class*


*over some server classes*. After googling a bit, normally that is because 
I have two versions of the same library/classes in my Tomcat. So far so 
good.

The thing is if I comment in my *pom.xml *everything related gwt 
(*gwt-maven-plugin, 
gwt's dependencies...*) *the problem disappears*.  The gwt classes are 
minimal, just an empty EntryPoint with an:
 

*Window.alert("Hello World"); *

 
So, I imagine is something related with *gwt-maven-plugin*. What am I 
missing? Can you give me some ideas?

Some notes:

I have searched inside the final jar and using "find" command only shows 
one class.
I have run the duplicate-maven-plugin 
<https://github.com/basepom/duplicate-finder-maven-plugin/wiki> and there 
is no strange things related with the classes.

I am running in GWT 2.8-SNAPSHOT with 2.7.0 maven plugin. Java 1.8 

I have attached *pom.xml* and *exception stack strace( *
https://docs.google.com/document/d/1LuJ5oJ4rwbMl9Wbx881XyN5GwI2mCdhKk6L_RdIIoCM/edit?usp=sharing
 
*)* just in case I am missing something. 


Thanks in advance,

Adolfo. 

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Attachment: pom.xml
Description: XML document

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