Make the CloseEvent members immutable.
Make the CloseEvent members immutable.

mdibaiee/servo,canaltinova/servo,avadacatavra/servo,nick-thompson/servo,peterjoel/servo,steveklabnik/servo,mt2d2/servo,mattnenterprise/servo,pgonda/servo,steveklabnik/servo,upsuper/servo,notriddle/servo,meh/servo,emilio/servo,pgonda/servo,paulrouget/servo,boghison/servo,saratang/servo,caldwell/servo,ConnorGBrewster/servo,steveklabnik/servo,walac/servo,CJ8664/servo,nnethercote/servo,wartman4404/servo,avadacatavra/servo,paulrouget/servo,tempbottle/servo,j3parker/servo,avadacatavra/servo,pgonda/servo,SimonSapin/servo,jdramani/servo,GreenRecycleBin/servo,fiji-flo/servo,pyecs/servo,akosel/servo,mbrubeck/servo,jlegendary/servo,dati91/servo,GreenRecycleBin/servo,ConnorGBrewster/servo,tafia/servo,pyecs/servo,bjwbell/servo,vks/servo,akosel/servo,anthgur/servo,mattnenterprise/servo,steveklabnik/servo,aidanhs/servo,splav/servo,dagnir/servo,dati91/servo,brendandahl/servo,boghison/servo,j3parker/servo,nick-thompson/servo,pyecs/servo,nrc/servo,szeged/servo,jgraham/servo,saneyuki/servo,nerith/servo,dvberkel/servo,dati91/servo,deokjinkim/servo,runarberg/servo,mt2d2/servo,dsandeephegde/servo,runarberg/servo,walac/servo,deokjinkim/servo,nick-thompson/servo,fiji-flo/servo,rixrix/servo,anthgur/servo,jdramani/servo,samfoo/servo,zentner-kyle/servo,peterjoel/servo,j3parker/servo,meh/servo,nnethercote/servo,karlito40/servo,akosel/servo,tafia/servo,nerith/servo,g-k/servo,mdibaiee/servo,dati91/servo,jimberlage/servo,splav/servo,jlegendary/servo,kindersung/servo,A-deLuna/servo,kindersung/servo,RenaudParis/servo,emilio/servo,pyfisch/servo,notriddle/servo,GreenRecycleBin/servo,karlito40/servo,GyrosOfWar/servo,RenaudParis/servo,RenaudParis/servo,CJ8664/servo,pgonda/servo,pyfisch/servo,cbrewster/servo,mdibaiee/servo,sadmansk/servo,j3parker/servo,nnethercote/servo,szeged/servo,aidanhs/servo,ryancanhelpyou/servo,rentongzhang/servo,jgraham/servo,cbrewster/servo,dhananjay92/servo,notriddle/servo,rentongzhang/servo,szeged/servo,hyowon/servo,KiChjang/servo,upsuper/servo,walac/servo,DominoTree/servo,KiChjang/servo,AnthonyBroadCrawford/servo,jlegendary/servo,thiagopnts/servo,thiagopnts/servo,zhangjunlei26/servo,sadmansk/servo,mt2d2/servo,eddyb/servo,pyecs/servo,huonw/servo,vks/servo,runarberg/servo,A-deLuna/servo,youprofit/servo,walac/servo,notriddle/servo,SimonSapin/servo,thiagopnts/servo,jlegendary/servo,deokjinkim/servo,GreenRecycleBin/servo,brendandahl/servo,codemac/servo,A-deLuna/servo,upsuper/servo,mbrubeck/servo,nrc/servo,jimberlage/servo,aweinstock314/servo,meh/servo,eddyb/servo,wartman4404/servo,WriterOfAlicrow/servo,splav/servo,saneyuki/servo,KiChjang/servo,youprofit/servo,paulrouget/servo,samfoo/servo,nnethercote/servo,aweinstock314/servo,jimberlage/servo,sadmansk/servo,zentner-kyle/servo,GyrosOfWar/servo,s142857/servo,kindersung/servo,larsbergstrom/servo,rnestler/servo,splav/servo,tschneidereit/servo,mbrubeck/servo,thiagopnts/servo,dsandeephegde/servo,dati91/servo,mbrubeck/servo,AnthonyBroadCrawford/servo,saratang/servo,vks/servo,eddyb/servo,dagnir/servo,ConnorGBrewster/servo,kindersung/servo,pyfisch/servo,aweinstock314/servo,mdibaiee/servo,codemac/servo,thiagopnts/servo,caldwell/servo,caldwell/servo,notriddle/servo,kindersung/servo,caldwell/servo,wartman4404/servo,paulrouget/servo,KiChjang/servo,CJ8664/servo,zhangjunlei26/servo,peterjoel/servo,codemac/servo,meh/servo,youprofit/servo,dati91/servo,nnethercote/servo,SimonSapin/servo,larsbergstrom/servo,runarberg/servo,anthgur/servo,tafia/servo,dhananjay92/servo,AnthonyBroadCrawford/servo,canaltinova/servo,vks/servo,anthgur/servo,saratang/servo,aidanhs/servo,saratang/servo,GreenRecycleBin/servo,mattnenterprise/servo,cbrewster/servo,samfoo/servo,zentner-kyle/servo,emilio/servo,nnethercote/servo,deokjinkim/servo,youprofit/servo,dagnir/servo,codemac/servo,GyrosOfWar/servo,ryancanhelpyou/servo,tempbottle/servo,mattnenterprise/servo,dati91/servo,deokjinkim/servo,emilio/servo,GyrosOfWar/servo,huonw/servo,AnthonyBroadCrawford/servo,pyecs/servo,akosel/servo,mdibaiee/servo,DominoTree/servo,eddyb/servo,ryancanhelpyou/servo,GyrosOfWar/servo,aweinstock314/servo,dsandeephegde/servo,DominoTree/servo,nerith/servo,zhangjunlei26/servo,rixrix/servo,pgonda/servo,peterjoel/servo,dsandeephegde/servo,mt2d2/servo,rentongzhang/servo,saratang/servo,splav/servo,larsbergstrom/servo,huonw/servo,saneyuki/servo,jlegendary/servo,dvberkel/servo,KiChjang/servo,nrc/servo,CJ8664/servo,anthgur/servo,splav/servo,SimonSapin/servo,huonw/servo,emilio/servo,peterjoel/servo,eddyb/servo,nerith/servo,meh/servo,upsuper/servo,SimonSapin/servo,saneyuki/servo,notriddle/servo,rixrix/servo,AnthonyBroadCrawford/servo,jlegendary/servo,jlegendary/servo,boghison/servo,dvberkel/servo,dhananjay92/servo,hyowon/servo,CJ8664/servo,nnethercote/servo,walac/servo,avadacatavra/servo,tschneidereit/servo,rixrix/servo,nnethercote/servo,tempbottle/servo,emilio/servo,rentongzhang/servo,saneyuki/servo,sadmansk/servo,zentner-kyle/servo,brendandahl/servo,jgraham/servo,mattnenterprise/servo,thiagopnts/servo,saratang/servo,dvberkel/servo,upsuper/servo,vks/servo,eddyb/servo,emilio/servo,j3parker/servo,cbrewster/servo,bjwbell/servo,g-k/servo,brendandahl/servo,WriterOfAlicrow/servo,mbrubeck/servo,steveklabnik/servo,AnthonyBroadCrawford/servo,pgonda/servo,hyowon/servo,boghison/servo,rnestler/servo,fiji-flo/servo,SimonSapin/servo,jimberlage/servo,dagnir/servo,tempbottle/servo,wartman4404/servo,rnestler/servo,GyrosOfWar/servo,nrc/servo,notriddle/servo,ryancanhelpyou/servo,jgraham/servo,runarberg/servo,meh/servo,kindersung/servo,s142857/servo,peterjoel/servo,larsbergstrom/servo,aidanhs/servo,peterjoel/servo,pyfisch/servo,szeged/servo,saneyuki/servo,runarberg/servo,avadacatavra/servo,paulrouget/servo,paulrouget/servo,DominoTree/servo,avadacatavra/servo,s142857/servo,samfoo/servo,nerith/servo,rentongzhang/servo,ConnorGBrewster/servo,anthgur/servo,A-deLuna/servo,akosel/servo,splav/servo,zentner-kyle/servo,avadacatavra/servo,hyowon/servo,anthgur/servo,saratang/servo,brendandahl/servo,jimberlage/servo,vks/servo,boghison/servo,rnestler/servo,dati91/servo,RenaudParis/servo,tschneidereit/servo,tafia/servo,jgraham/servo,tschneidereit/servo,mt2d2/servo,bjwbell/servo,canaltinova/servo,WriterOfAlicrow/servo,mdibaiee/servo,KiChjang/servo,pgonda/servo,larsbergstrom/servo,paulrouget/servo,nnethercote/servo,huonw/servo,nnethercote/servo,aweinstock314/servo,boghison/servo,pyecs/servo,WriterOfAlicrow/servo,WriterOfAlicrow/servo,cbrewster/servo,karlito40/servo,nerith/servo,zhangjunlei26/servo,eddyb/servo,RenaudParis/servo,nrc/servo,rentongzhang/servo,zhangjunlei26/servo,paulrouget/servo,larsbergstrom/servo,dagnir/servo,codemac/servo,nick-thompson/servo,jdramani/servo,zhangjunlei26/servo,meh/servo,tempbottle/servo,mbrubeck/servo,dagnir/servo,samfoo/servo,vks/servo,fiji-flo/servo,dsandeephegde/servo,mt2d2/servo,ConnorGBrewster/servo,saneyuki/servo,fiji-flo/servo,caldwell/servo,akosel/servo,bjwbell/servo,KiChjang/servo,rnestler/servo,saneyuki/servo,tschneidereit/servo,KiChjang/servo,szeged/servo,boghison/servo,SimonSapin/servo,jimberlage/servo,jdramani/servo,AnthonyBroadCrawford/servo,mattnenterprise/servo,walac/servo,emilio/servo,jimberlage/servo,aidanhs/servo,DominoTree/servo,rnestler/servo,mattnenterprise/servo,mbrubeck/servo,mdibaiee/servo,deokjinkim/servo,s142857/servo,larsbergstrom/servo,peterjoel/servo,kindersung/servo,fiji-flo/servo,pyfisch/servo,upsuper/servo,szeged/servo,ryancanhelpyou/servo,samfoo/servo,sadmansk/servo,g-k/servo,DominoTree/servo,emilio/servo,wartman4404/servo,g-k/servo,dsandeephegde/servo,s142857/servo,notriddle/servo,pyfisch/servo,pyfisch/servo,jimberlage/servo,notriddle/servo,walac/servo,saneyuki/servo,dsandeephegde/servo,zhangjunlei26/servo,WriterOfAlicrow/servo,DominoTree/servo,aidanhs/servo,rixrix/servo,hyowon/servo,rentongzhang/servo,eddyb/servo,j3parker/servo,DominoTree/servo,WriterOfAlicrow/servo,karlito40/servo,zentner-kyle/servo,sadmansk/servo,brendandahl/servo,DominoTree/servo,larsbergstrom/servo,mt2d2/servo,cbrewster/servo,dvberkel/servo,dvberkel/servo,g-k/servo,canaltinova/servo,peterjoel/servo,samfoo/servo,dhananjay92/servo,pyfisch/servo,DominoTree/servo,bjwbell/servo,zhangjunlei26/servo,szeged/servo,saneyuki/servo,canaltinova/servo,tafia/servo,caldwell/servo,CJ8664/servo,nrc/servo,A-deLuna/servo,GyrosOfWar/servo,huonw/servo,jimberlage/servo,CJ8664/servo,tempbottle/servo,paulrouget/servo,ryancanhelpyou/servo,GreenRecycleBin/servo,codemac/servo,A-deLuna/servo,nick-thompson/servo,karlito40/servo,pyfisch/servo,thiagopnts/servo,karlito40/servo,CJ8664/servo,ConnorGBrewster/servo,youprofit/servo,szeged/servo,aweinstock314/servo,wartman4404/servo,upsuper/servo,dsandeephegde/servo,rnestler/servo,mattnenterprise/servo,SimonSapin/servo,akosel/servo,anthgur/servo,cbrewster/servo,splav/servo,s142857/servo,peterjoel/servo,s142857/servo,KiChjang/servo,nick-thompson/servo,ConnorGBrewster/servo,fiji-flo/servo,tschneidereit/servo,GreenRecycleBin/servo,nick-thompson/servo,splav/servo,cbrewster/servo,szeged/servo,szeged/servo,bjwbell/servo,A-deLuna/servo,fiji-flo/servo,GreenRecycleBin/servo,jdramani/servo,brendandahl/servo,RenaudParis/servo,sadmansk/servo,notriddle/servo,dhananjay92/servo,jdramani/servo,steveklabnik/servo,dhananjay92/servo,larsbergstrom/servo,KiChjang/servo,runarberg/servo,upsuper/servo,canaltinova/servo,splav/servo,jgraham/servo,pyfisch/servo,canaltinova/servo,nerith/servo,huonw/servo,aweinstock314/servo,ConnorGBrewster/servo,youprofit/servo,jgraham/servo,g-k/servo,caldwell/servo,dhananjay92/servo,j3parker/servo,larsbergstrom/servo,tschneidereit/servo,RenaudParis/servo,wartman4404/servo,jdramani/servo,avadacatavra/servo,tafia/servo,deokjinkim/servo,canaltinova/servo,aidanhs/servo,dvberkel/servo,bjwbell/servo,ryancanhelpyou/servo,mbrubeck/servo,pyecs/servo,youprofit/servo,g-k/servo,karlito40/servo,hyowon/servo,GreenRecycleBin/servo,thiagopnts/servo,steveklabnik/servo,hyowon/servo,rixrix/servo,emilio/servo,sadmansk/servo,rixrix/servo,zentner-kyle/servo,rnestler/servo,rixrix/servo,nrc/servo,dagnir/servo,rixrix/servo,zhangjunlei26/servo,tempbottle/servo,tafia/servo,codemac/servo,paulrouget/servo