Support ConnectionSpec on Okhttp client and support null ConnectionSpec parameters#12677

megla-tlanghorst wants to merge 4 commits intogrpc:mastergrpc/grpc-java:masterfrom

megla-tlanghorst:feature/okhttp-custom-ssl-parametersmegla-tlanghorst/grpc-java:feature/okhttp-custom-ssl-parametersCopy head branch name to clipboard