I've 2 Jenkins instances running on two Ubuntu 14.04 machines (both up to date as of now). On one which is running on a public cloud i can install the perfectomobile 2.20.1.2 plugin and use as expected on the other machine, a virtualbox VM running locally I get some exceptions which prevent me to use perfecto mobile. it installs the plugin, all files get dumped on my disk, but jenkins can't initialize the plugin on me local machine. I've not proxies or other fancy network setup.

I've attached listings of installed plugins and versions of both jenkins instances. the only difference is that on the machine on which perfecto is not working the Copy Artifact Plugin is installed.

further more I attached the stack trace extracted from jenkins log: