Minor clean up, port 223641fb5e03c5deb3de768647c229b73f5a3bec to master
Netty provider sends parts twice over https, port a29f682024b220438c55c4091010e1009e6936a3 to master
Don't compute SSLContext over and over again, port e8d76624d3bf022e3601d0ed65c427afc338b0d8 to master
Minor clean up, port 1d965d7565ad8de0cd18ffb918243d0687cc21b3 to master