I use xscope to monitor X11 protocol. I monitor X11 protocol because I try to fix some focus issue with Swing and MPX. I noticed that following packet is transmitted when focus error occurs. How to draw a conclusion from this message? I still don;tdon't know what is invalid. Do you have any idea?
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I suppose that there is some error between client (my application) and Window Manager. I think so because there is <WM_PROTOCOLS>.