These files are containing the class tomcat websocket

Artifact atmosphere-runtime
Group org.atmosphere
Version 2.3.9
Last update 18. July 2018
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Organization not specified
URL https://github.com/Atmosphere/atmosphere
License not specified
Dependencies amount 0
Dependencies No dependencies
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Artifact atmosphere-runtime
Group org.atmosphere
Version 2.2.11
Last update 16. February 2018
Tags: https open projects maven sonatype repositories source helps
Organization not specified
URL https://github.com/Atmosphere/atmosphere
License not specified
Dependencies amount 0
Dependencies No dependencies
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Artifact atmosphere-runtime
Group org.atmosphere
Version 2.2.10
Last update 15. November 2016
Tags: https open projects maven sonatype repositories source helps
Organization not specified
URL https://github.com/Atmosphere/atmosphere
License not specified
Dependencies amount 0
Dependencies No dependencies
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Artifact atmosphere-runtime
Group org.atmosphere
Version 2.4.1.8
Last update 26. September 2016
Tags: https open projects maven sonatype repositories source helps
Organization not specified
URL https://github.com/Atmosphere/atmosphere
License not specified
Dependencies amount 0
Dependencies No dependencies
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Artifact atmosphere-runtime
Group org.atmosphere
Version 2.3.8
Last update 20. May 2016
Tags: https open projects maven sonatype repositories source helps
Organization not specified
URL https://github.com/Atmosphere/atmosphere
License not specified
Dependencies amount 0
Dependencies No dependencies
There are maybe transitive dependencies!