The software i was developing worked fine in my development environment (windows, glassfish4, java8, mysql5.7). The problem is putting it on the approval environment (Linux-OpenSuse, glassfish4, java8, mysql5.7) the glassfish looses the instance of session scoped bean already created and create it again. I know it's not much information, but, i really don't know where to start to resolve it. Anyway, each info is welcome.
i'm sorry i couldn't investigate the problem because of time. We rebuild our linux (opensuse) environment and reconfigured each tool. It worked for me. Thanks everybody who spent time trying to help me. Thanks @Kukeltje
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