ARD,

Thank you for your report. I have confirmed that the very latest Apache Tomcat versions (8.0.37 as well as 8.5.5, though we don't recommend using 8.5.x at this point) include a change that breaks compatibility with our LabkeyBootstrapClassLoader build. We're still investigating their change and whether our code can work around this incompatibility, but for now, please install and build against Tomcat version 8.0.36, as Jon has recommended.

Thanks,
Adam