Problem: jav.lang.NullPointerException

[Charles7]

... and thank you for the diagnosis, the workaround, and your candor with users.

A couple of days after first reporting the problem, and after I had made a copy of the folder that was giving the problem, I put the original folder back in .contentDir to see what happens. This time there was no problem! I presume the intermittent behavior confirms your partial diagnosis.

So I have now opened the Minimserver tray icon, selected Show Log from the right-click menu, and set the Logging Level dropdown menu to Info. And confirmed the setting on the Minimserver control page in the browser at Properties | System | .logLevel = info