private String regularMsg(DeactivatedContainer container, int refCount) {
        return String.format(
                "Deactivated container still alive: instance=%s, activated=%s, deactivated=%s, ref-count=%d",
                container.instance, container.timeActivated, container.timeDeactivated, refCount);
    }
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