Get rid of error: “The web.xml file does not exist”

How to get rid of “The web.xml file does not exist” error in Eclipse from GWT Plugin?

I use spring as a backend, which is allowed by GWT. GWT is client side framework.
I configure my spring using java config instead of xml's files, so I don't have and I wouldn't have web.xml file. IMHO plugin should not demand this file on project, or should allow to set in configuration to not use web.xml.

Here http://docs.spring.io/autorepo/docs/spring-framework/3.1.x/javadoc-api/org/springframework/web/WebApplicationInitializer.html is spring documentation about java config

Here is post on stackoverflow:
https://stackoverflow.com/questions/35332574/how-to-get-rid-of-the-web-xml-file-does-not-exist-error-in-eclipse-from-gwt-pl

Start with the GWT Eclipse Plugin project and reproduce the “The web.xml file does not exist” error shown in the screenshot for a Spring project using Java configuration. Read the linked Spring WebApplicationInitializer documentation and issue details; done means Java-configured projects no longer produce this error or can explicitly configure that web.xml is not used.

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