Enforce java8 for compilation
Enforce java8 for compilation

Motivation:

Commit 591293bfb4f6a48a311d195303ce772fb801ec95 changed the build to need java8 but missed to adjust the enforce rule as well.

Modifications:

Enforce java8+

Result:

Quickly fail when user tries to compile with pre java8

blucas/netty,s-gheldd/netty,Squarespace/netty,zer0se7en/netty,mikkokar/netty,carl-mastrangelo/netty,zer0se7en/netty,johnou/netty,artgon/netty,artgon/netty,NiteshKant/netty,mikkokar/netty,johnou/netty,ejona86/netty,mikkokar/netty,gerdriesselmann/netty,Squarespace/netty,cnoldtree/netty,NiteshKant/netty,artgon/netty,zer0se7en/netty,gerdriesselmann/netty,NiteshKant/netty,carl-mastrangelo/netty,tbrooks8/netty,Apache9/netty,s-gheldd/netty,mcobrien/netty,mcobrien/netty,jchambers/netty,zer0se7en/netty,artgon/netty,louxiu/netty,bryce-anderson/netty,gerdriesselmann/netty,bryce-anderson/netty,ejona86/netty,jchambers/netty,ngocdaothanh/netty,mikkokar/netty,blucas/netty,Spikhalskiy/netty,fenik17/netty,Apache9/netty,Squarespace/netty,cnoldtree/netty,louxiu/netty,skyao/netty,bryce-anderson/netty,KatsuraKKKK/netty,KatsuraKKKK/netty,johnou/netty,fenik17/netty,louxiu/netty,doom369/netty,Squarespace/netty,carl-mastrangelo/netty,fengjiachun/netty,cnoldtree/netty,andsel/netty,doom369/netty,cnoldtree/netty,jchambers/netty,idelpivnitskiy/netty,artgon/netty,Spikhalskiy/netty,doom369/netty,skyao/netty,Apache9/netty,louxiu/netty,KatsuraKKKK/netty,andsel/netty,zer0se7en/netty,Spikhalskiy/netty,ejona86/netty,Spikhalskiy/netty,ejona86/netty,ngocdaothanh/netty,fenik17/netty,idelpivnitskiy/netty,idelpivnitskiy/netty,KatsuraKKKK/netty,mcobrien/netty,mcobrien/netty,tbrooks8/netty,gerdriesselmann/netty,skyao/netty,carl-mastrangelo/netty,bryce-anderson/netty,cnoldtree/netty,idelpivnitskiy/netty,fengjiachun/netty,ngocdaothanh/netty,louxiu/netty,blucas/netty,tbrooks8/netty,netty/netty,fenik17/netty,s-gheldd/netty,mcobrien/netty,netty/netty,andsel/netty,mikkokar/netty,gerdriesselmann/netty,fengjiachun/netty,NiteshKant/netty,KatsuraKKKK/netty,Apache9/netty,fengjiachun/netty,s-gheldd/netty,fenik17/netty,bryce-anderson/netty,johnou/netty,doom369/netty,tbrooks8/netty,fengjiachun/netty,doom369/netty,jchambers/netty,Spikhalskiy/netty,blucas/netty,ngocdaothanh/netty,NiteshKant/netty,idelpivnitskiy/netty,blucas/netty,Apache9/netty,skyao/netty,skyao/netty,s-gheldd/netty,carl-mastrangelo/netty,netty/netty,jchambers/netty,netty/netty,tbrooks8/netty,netty/netty,ejona86/netty,johnou/netty,Squarespace/netty,ngocdaothanh/netty,andsel/netty,andsel/netty