When installing Jenkins 2.8 onto Tomcat 8, it is really difficult to get past the initial admin password screen.

Looking further into this, it appears that this is because the from parameter defaults to /jenkins and not /jenkins/, and the FORCE_SETUP_WIZARD_FILTER in SetupWizard will fail to realize that it should display the setupWizard. Potentially the if check should be enhanced to:

if ((req.getContextPath() + "/").equals(req.getRequestURI()) || req.getContextPath().equals(req.getRequestURI()) {