Currently if the agent fails to instrument a target class, the TransformRegistry keeps the information around, which leads to misleading situations where the Agent Plugin UI will continue to display events that were never actually injected since it pulls this information from the TransformRegistry via JMX. This has knock on effects for any other users of the retrieveCurrentTransforms operation in the AgentController MBean since it pulls this information from the TransformRegistry. Ideally if something went wrong the TransformRegistry shouldn't persist this information, or at the very least shouldn't relay that to users of the AgentController as being current transforms.