travis: Workaround broken Travis CI java configuration.
travis: Workaround broken Travis CI java configuration.

Travis CI seems to have broken /usr/bin/java in a recent
infrastructure change.

sonali0901/zulip,aakash-cr7/zulip,Diptanshu8/zulip,verma-varsha/zulip,Juanvulcano/zulip,showell/zulip,isht3/zulip,TigorC/zulip,Jianchun1/zulip,dhcrzf/zulip,vabs22/zulip,jackrzhang/zulip,jphilipsen05/zulip,jackrzhang/zulip,amyliu345/zulip,dhcrzf/zulip,AZtheAsian/zulip,zacps/zulip,isht3/zulip,punchagan/zulip,showell/zulip,shubhamdhama/zulip,vabs22/zulip,niftynei/zulip,jainayush975/zulip,showell/zulip,TigorC/zulip,ryanbackman/zulip,jphilipsen05/zulip,ryanbackman/zulip,hackerkid/zulip,eeshangarg/zulip,verma-varsha/zulip,timabbott/zulip,showell/zulip,mahim97/zulip,brockwhittaker/zulip,susansls/zulip,cosmicAsymmetry/zulip,TigorC/zulip,verma-varsha/zulip,verma-varsha/zulip,niftynei/zulip,KingxBanana/zulip,showell/zulip,timabbott/zulip,Jianchun1/zulip,niftynei/zulip,jrowan/zulip,vabs22/zulip,andersk/zulip,arpith/zulip,grave-w-grave/zulip,sonali0901/zulip,Jianchun1/zulip,kou/zulip,AZtheAsian/zulip,vaidap/zulip,Galexrt/zulip,sharmaeklavya2/zulip,timabbott/zulip,dawran6/zulip,dawran6/zulip,susansls/zulip,christi3k/zulip,dattatreya303/zulip,shubhamdhama/zulip,andersk/zulip,AZtheAsian/zulip,tommyip/zulip,tommyip/zulip,dawran6/zulip,peguin40/zulip,KingxBanana/zulip,christi3k/zulip,brainwane/zulip,tommyip/zulip,sonali0901/zulip,Galexrt/zulip,amanharitsh123/zulip,souravbadami/zulip,KingxBanana/zulip,shubhamdhama/zulip,rishig/zulip,brainwane/zulip,eeshangarg/zulip,brainwane/zulip,susansls/zulip,eeshangarg/zulip,sharmaeklavya2/zulip,isht3/zulip,SmartPeople/zulip,SmartPeople/zulip,Juanvulcano/zulip,synicalsyntax/zulip,PhilSk/zulip,susansls/zulip,cosmicAsymmetry/zulip,zulip/zulip,jphilipsen05/zulip,kou/zulip,dawran6/zulip,TigorC/zulip,amanharitsh123/zulip,shubhamdhama/zulip,timabbott/zulip,amyliu345/zulip,JPJPJPOPOP/zulip,ryanbackman/zulip,isht3/zulip,timabbott/zulip,joyhchen/zulip,SmartPeople/zulip,andersk/zulip,synicalsyntax/zulip,rht/zulip,andersk/zulip,Jianchun1/zulip,dattatreya303/zulip,brainwane/zulip,eeshangarg/zulip,KingxBanana/zulip,vaidap/zulip,jackrzhang/zulip,niftynei/zulip,vaidap/zulip,jainayush975/zulip,zulip/zulip,jrowan/zulip,punchagan/zulip,samatdav/zulip,AZtheAsian/zulip,aakash-cr7/zulip,grave-w-grave/zulip,zacps/zulip,niftynei/zulip,jrowan/zulip,j831/zulip,souravbadami/zulip,blaze225/zulip,joyhchen/zulip,synicalsyntax/zulip,jphilipsen05/zulip,jackrzhang/zulip,kou/zulip,grave-w-grave/zulip,eeshangarg/zulip,sharmaeklavya2/zulip,Juanvulcano/zulip,sharmaeklavya2/zulip,Galexrt/zulip,dattatreya303/zulip,TigorC/zulip,JPJPJPOPOP/zulip,Diptanshu8/zulip,souravbadami/zulip,jainayush975/zulip,joyhchen/zulip,jainayush975/zulip,sonali0901/zulip,j831/zulip,rishig/zulip,souravbadami/zulip,JPJPJPOPOP/zulip,rht/zulip,jainayush975/zulip,blaze225/zulip,Juanvulcano/zulip,amanharitsh123/zulip,susansls/zulip,zulip/zulip,vaidap/zulip,timabbott/zulip,verma-varsha/zulip,tommyip/zulip,ryanbackman/zulip,zulip/zulip,amyliu345/zulip,tommyip/zulip,j831/zulip,j831/zulip,kou/zulip,hackerkid/zulip,mahim97/zulip,hackerkid/zulip,dattatreya303/zulip,samatdav/zulip,grave-w-grave/zulip,showell/zulip,dhcrzf/zulip,vabs22/zulip,niftynei/zulip,brainwane/zulip,joyhchen/zulip,Galexrt/zulip,jackrzhang/zulip,synicalsyntax/zulip,samatdav/zulip,grave-w-grave/zulip,brainwane/zulip,KingxBanana/zulip,rht/zulip,Diptanshu8/zulip,ryanbackman/zulip,arpith/zulip,rishig/zulip,aakash-cr7/zulip,samatdav/zulip,sonali0901/zulip,hackerkid/zulip,brockwhittaker/zulip,ryanbackman/zulip,amanharitsh123/zulip,vaidap/zulip,amyliu345/zulip,eeshangarg/zulip,peguin40/zulip,jainayush975/zulip,Juanvulcano/zulip,aakash-cr7/zulip,Jianchun1/zulip,SmartPeople/zulip,kou/zulip,JPJPJPOPOP/zulip,AZtheAsian/zulip,JPJPJPOPOP/zulip,isht3/zulip,Galexrt/zulip,jphilipsen05/zulip,PhilSk/zulip,christi3k/zulip,vabs22/zulip,punchagan/zulip,j831/zulip,Galexrt/zulip,souravbadami/zulip,arpith/zulip,peguin40/zulip,susansls/zulip,zulip/zulip,hackerkid/zulip,brockwhittaker/zulip,Jianchun1/zulip,brockwhittaker/zulip,mahim97/zulip,sonali0901/zulip,synicalsyntax/zulip,punchagan/zulip,shubhamdhama/zulip,peguin40/zulip,sharmaeklavya2/zulip,rishig/zulip,rishig/zulip,zacps/zulip,dawran6/zulip,showell/zulip,blaze225/zulip,mahim97/zulip,christi3k/zulip,SmartPeople/zulip,zacps/zulip,hackerkid/zulip,punchagan/zulip,dhcrzf/zulip,dhcrzf/zulip,Juanvulcano/zulip,eeshangarg/zulip,Galexrt/zulip,blaze225/zulip,zulip/zulip,joyhchen/zulip,dattatreya303/zulip,dawran6/zulip,synicalsyntax/zulip,cosmicAsymmetry/zulip,vaidap/zulip,samatdav/zulip,punchagan/zulip,vabs22/zulip,christi3k/zulip,verma-varsha/zulip,synicalsyntax/zulip,tommyip/zulip,cosmicAsymmetry/zulip,TigorC/zulip,arpith/zulip,joyhchen/zulip,jrowan/zulip,PhilSk/zulip,andersk/zulip,mahim97/zulip,tommyip/zulip,dattatreya303/zulip,zacps/zulip,arpith/zulip,aakash-cr7/zulip,jrowan/zulip,blaze225/zulip,Diptanshu8/zulip,AZtheAsian/zulip,aakash-cr7/zulip,timabbott/zulip,andersk/zulip,amanharitsh123/zulip,isht3/zulip,zulip/zulip,souravbadami/zulip,amyliu345/zulip,zacps/zulip,rht/zulip,peguin40/zulip,rht/zulip,cosmicAsymmetry/zulip,brainwane/zulip,peguin40/zulip,dhcrzf/zulip,punchagan/zulip,amyliu345/zulip,samatdav/zulip,grave-w-grave/zulip,j831/zulip,hackerkid/zulip,arpith/zulip,sharmaeklavya2/zulip,PhilSk/zulip,rishig/zulip,jackrzhang/zulip,PhilSk/zulip,kou/zulip,Diptanshu8/zulip,PhilSk/zulip,SmartPeople/zulip,blaze225/zulip,shubhamdhama/zulip,amanharitsh123/zulip,Diptanshu8/zulip,brockwhittaker/zulip,brockwhittaker/zulip,kou/zulip,KingxBanana/zulip,jackrzhang/zulip,jrowan/zulip,christi3k/zulip,dhcrzf/zulip,rishig/zulip,jphilipsen05/zulip,rht/zulip,cosmicAsymmetry/zulip,mahim97/zulip,JPJPJPOPOP/zulip,andersk/zulip,rht/zulip,shubhamdhama/zulip