Draft followup of https://github.com/jenkinsci/versioncolumn-plugin/pull/1#issuecomment-283090134

versioncolumn-jvm.adoc

JVM version Node Monitor

The goal is to help making sure JVM versions in use on Master and Agents are reasonably aligned to avoid ClassFormatError and other cool errors.

default?	Description	Examples
✓ Yes	Disconnect if Master bytecode level is higher than agent’s runtime JVM	an agent running Java 6 or less will be disconnected from 2.32.3 Master an agent running Java 6 will not be disconnected from a 1.609 Master an agent running Java 7 will be disconnected from a 2.60 Master
❏ No	Disconnect if Master JVM is not the same major.minor version as the agent’s	an agent running 1.7 or less will be disconnected from a Master running 1.8.112 an agent running 1.8.66 will not be disconnected from a Master running 1.8.112
❏ No	Disconnect if Master JVM is not exactly the same than agent’s runtime JVM (paranoid option)	an agent running 1.8.66 will be disconnected from a Master running 1.8.112