Good point, Julian.
Looking at the release page:
The static PARSER in each generated message is deprecated, and it will
be removed in a future release. A static parser() getter is generated
for each message type instead.
This is also important to fix. I used this field to tie the POJOs to the protobuf classes.
Proto3 JSON is supported in several languages (fully supported in C++
and Java, partially supported in Ruby/C#). The JSON spec is defined in
the proto3 language guide:
Looks like we can also start trying out the JSON serialization (instead of the binary serialization) which will help in readability/debugging of the stuff over the wire.