Do not seg-fault if executioner was not build (#1501)
Do not seg-fault if executioner was not build (#1501)

r15135

jessecarterMOOSE/moose,zzyfisherman/moose,liuwenf/moose,jbair34/moose,liuwenf/moose,capitalaslash/moose,cpritam/moose,jinmm1992/moose,dschwen/moose,yipenggao/moose,SudiptaBiswas/moose,tonkmr/moose,jbair34/moose,milljm/moose,bwspenc/moose,cpritam/moose,permcody/moose,joshua-cogliati-inl/moose,joshua-cogliati-inl/moose,yipenggao/moose,jiangwen84/moose,capitalaslash/moose,capitalaslash/moose,shanestafford/moose,apc-llc/moose,sapitts/moose,harterj/moose,Chuban/moose,zzyfisherman/moose,jhbradley/moose,adamLange/moose,jasondhales/moose,harterj/moose,lindsayad/moose,roystgnr/moose,WilkAndy/moose,waxmanr/moose,jiangwen84/moose,lindsayad/moose,jasondhales/moose,andrsd/moose,jasondhales/moose,backmari/moose,danielru/moose,jessecarterMOOSE/moose,dschwen/moose,apc-llc/moose,dschwen/moose,katyhuff/moose,wgapl/moose,sapitts/moose,yipenggao/moose,jhbradley/moose,harterj/moose,milljm/moose,harterj/moose,SudiptaBiswas/moose,SudiptaBiswas/moose,YaqiWang/moose,mellis13/moose,markr622/moose,zzyfisherman/moose,laagesen/moose,stimpsonsg/moose,tonkmr/moose,zzyfisherman/moose,permcody/moose,jasondhales/moose,mellis13/moose,jhbradley/moose,laagesen/moose,friedmud/moose,waxmanr/moose,raghavaggarwal/moose,laagesen/moose,shanestafford/moose,zzyfisherman/moose,adamLange/moose,shanestafford/moose,YaqiWang/moose,bwspenc/moose,liuwenf/moose,harterj/moose,jinmm1992/moose,roystgnr/moose,joshua-cogliati-inl/moose,nuclear-wizard/moose,jiangwen84/moose,bwspenc/moose,danielru/moose,dschwen/moose,milljm/moose,friedmud/moose,idaholab/moose,kasra83/moose,katyhuff/moose,raghavaggarwal/moose,milljm/moose,dschwen/moose,roystgnr/moose,nuclear-wizard/moose,roystgnr/moose,WilkAndy/moose,wgapl/moose,xy515258/moose,yipenggao/moose,jinmm1992/moose,milljm/moose,andrsd/moose,Chuban/moose,idaholab/moose,friedmud/moose,SudiptaBiswas/moose,andrsd/moose,liuwenf/moose,tonkmr/moose,andrsd/moose,zzyfisherman/moose,liuwenf/moose,sapitts/moose,danielru/moose,kasra83/moose,cpritam/moose,lindsayad/moose,laagesen/moose,apc-llc/moose,roystgnr/moose,tonkmr/moose,mellis13/moose,laagesen/moose,jiangwen84/moose,kasra83/moose,nuclear-wizard/moose,YaqiWang/moose,bwspenc/moose,lindsayad/moose,adamLange/moose,friedmud/moose,markr622/moose,bwspenc/moose,xy515258/moose,idaholab/moose,jessecarterMOOSE/moose,SudiptaBiswas/moose,stimpsonsg/moose,backmari/moose,joshua-cogliati-inl/moose,idaholab/moose,WilkAndy/moose,markr622/moose,sapitts/moose,stimpsonsg/moose,jhbradley/moose,giopastor/moose,idaholab/moose,YaqiWang/moose,WilkAndy/moose,cpritam/moose,sapitts/moose,jbair34/moose,backmari/moose,markr622/moose,permcody/moose,Chuban/moose,shanestafford/moose,capitalaslash/moose,WilkAndy/moose,jessecarterMOOSE/moose,katyhuff/moose,andrsd/moose,waxmanr/moose,cpritam/moose,cpritam/moose,katyhuff/moose,xy515258/moose,danielru/moose,raghavaggarwal/moose,shanestafford/moose,jbair34/moose,Chuban/moose,giopastor/moose,shanestafford/moose,adamLange/moose,liuwenf/moose,backmari/moose,jessecarterMOOSE/moose,wgapl/moose,mellis13/moose,raghavaggarwal/moose,roystgnr/moose,WilkAndy/moose,giopastor/moose,roystgnr/moose,kasra83/moose,stimpsonsg/moose,tonkmr/moose,permcody/moose,xy515258/moose,giopastor/moose,apc-llc/moose,jinmm1992/moose,nuclear-wizard/moose,tonkmr/moose,lindsayad/moose,wgapl/moose,waxmanr/moose