private String removalMsg(DeactivatedContainer container) {
        return String.format("Removing deactivated container: instance=%s, activated=%s, deactivated=%s",
                               container.instance, container.timeActivated, container.timeDeactivated);
    }
A watchdog that monitors all deactivated {@link ActiveContainer} instances with the purpose of detecting stale containers.

@author bjorncs
jdisc_core/src/main/java/com/yahoo/jdisc/core/ContainerWatchdog.java