Check for null daemonCore instance in dtor before calling through it HTCONDOR-409
Check for null daemonCore instance in dtor before calling through it
HTCONDOR-409

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor