ErrorProne provides static analysis for common issues, including
misused variables GuardedBy locks.
This increases build time by 60% for parallel builds and 30% for
non-parallel, so I've provided a way to disable the check. It is on by
default though and will be run in our CI environments.
The new plugin uses a newer version of animalsniffer, allows overriding
the animalsniffer version used, and has up-to-date handling. The
up-to-date handling cuts fully incremental parallel build times in half,
from 5.5s to 2.7s.
The previous plugin was supposed to be verifying tests. However, either
it wasn't verifying them or its verification was broken.
protoc no longer builds in 3.0.0 because auto-download of the gmock zip
now fails. 3.0.2 has a fix to autogen:
bba446bbf2
All that was strictly necessary was to update .travis.yml and
buildscripts/, but it helps our sanity to keep the rest of the protobuf
versions in sync. Lite is left on its existing version, because it did
not see a bump of neither the java library nor the protoc plugin.
Protobuf-lite since beta-4 is now more of a fork than a subset of
protobuf-java, which may cause us problems later since lite API is not
stable. Also, lite-generated code may now depend on APIs only in
protobuf-lite, so our users must depend on the protobuf-lite runtime.
Having all our users explicitly override the dependency is bothersome to
them and can easily only expose problems only after we do a release.
So now we are doing the dependency overriding; most users should "just
work" and pick up the correct protobuf artifact. I've confirmed the
exclusion is listed in the grpc-protobuf pom and "gradle dependencies"
and "mvn dependency:tree" do not include protobuf-lite for the examples.
Vanilla protobuf users are most likely to experience any breakage, which
should detect problems more quickly since we use protobuf-java more
frequently than protobuf-lite during development.
protobuf-lite does not include pre-generated code for the well-known
protos, so users will need to generate them themselves for the moment
(google/protobuf#1889).
Note that today changing deps does not noticeably reduce the method code
for our users, since ProGuard already is stripping most classes. The
difference in output is only a reduction of 3 classes and 6 methods for
the android example.
Lite already worked by using the protobuf project, but would bring in
extra dependencies that are not intended to work with lite. Although
protobuf is not yet providing a lite package on Maven Central, we will
be able to swap to it once it is available.
There isn't any new original code in the Java portion, except for a new
overload in ProtoUtils that accepts Message instead of MessageLite.
Depending on Message in ProtoUtils allows us to support extra features
out-of-the-box without any changes to the generated code. For example,
JSON encoding could be supported in this way if Marshaller is enhanced.
However, now codegen must be aware of Lite in order to choose with Util
class to use. That is new code.
zpencer
Eric Anderson
Carl Mastrangelo