Make BpmTask listeners thread safe.
Make BpmTask listeners thread safe.

jbartece/pnc,jbartece/pnc,matedo1/pnc,project-ncl/pnc,rnc/pnc,ruhan1/pnc,pkocandr/pnc,jdcasey/pnc,alexcreasy/pnc,matejonnet/pnc,thescouser89/pnc,ruhan1/pnc,matedo1/pnc,ruhan1/pnc,jbartece/pnc,alexcreasy/pnc,jdcasey/pnc,jdcasey/pnc,matedo1/pnc,alexcreasy/pnc