European Java conferences

I am thinking about attending a Java related conference next year. Are there any European ones, preferably smaller and less intimidating, you can recommend to a newcomer? I'm currently going through JCON recordings but that one seems big. In the meantime I also plan to visit my local JUG meeting

The context is that I'm a rather stereotypically shy and introverted software engineer, but I want to push myself a bit and try to make some real world connections with fellow. Maybe even speak at one someday. I've been working on improving myself for the past few years and I think it's time to pick up the pace and take this step.