These changes make the build compatible with Gradle 7, except for
Android which requires plugin updates.
I removed animalsniffer from binder because it did nothing (as there
were no signatures) and it was failing after setting toolVersion. It
failed because animalsniffer is only compatible with java plugin. After
this change I put the withId(animalsniffer) loading inside the
withId(java) to avoid a plugin ordering failure. That made it safe again
for binder to load animalsniffer, but it is still best to remove the
plugin from binder as it is misleading.
I did not upgrade Android plugin versions as newer versions (even 3.6)
require dealing with androidx (#8421).
Protobuf uses Guava 30.1.1, so I upgrade it at the same time. It also
caused an update to rules_jvm_external and reworking the Bazel build.
Protobuf no longer requires bind() so they were dropped. Although
Protobuf's protobuf_deps() brings in rules_jvm_external, and so we don't
need to define it ourselves, it seems better to define it directly and
not depend on transitive deps since we use it directly.
Protobuf now has support for maven_install() by exposing
PROTOBUF_MAVEN_ARTIFACTS, which required reorganizing the WORKSPACE to
use maven_install() after loading protobuf. Protobuf still doesn't
define target overrides for itself so we still maintain those. When
reorganizing the WORKSPACE I noticed http_archive should ideally be
above io_grpc_grpc_java as most users will need it there, so I fixed
that since there were lots of other load()-reordering already.
This version works around a warning about DuplicateStrategy in Gradle 6
that will be an error in Gradle 7 caused by [a bug in the plugin][1].
Bumping the version makes a clean build with `--warning-mode all` (at
least if skipping Android and codegen).
[1]: https://github.com/google/protobuf-gradle-plugin/issues/470
I didn't touch Protobuf and Netty; we upgrade those individually. Below
are issues I encountered that caused me to not upgrade (further).
Guava 30.1-android fails to build with Android without enabling
desugaring. https://github.com/google/guava/issues/5358
Robolectric 4.4 breaks AndroidChannelBuilderTest.
https://github.com/grpc/grpc-java/issues/7731
Opencensus 0.28.1+ is incompatible with gRPC.
https://github.com/census-instrumentation/opencensus-java/issues/2069https://github.com/grpc/grpc-java/issues/7732
Truth now defines the asm dependency as "compile" although it is still
optional. But asm appears to have accidentally included incorrect gradle
module metadata in their release (I see they've disabled the metadata on
master) which make gradle think it requires Java 8. We could asm
everywhere, but that's is annoying. It seems likely this will resolve
itself.
Mockito can be upgraded to 3.4.0, but it deprecates initMocks, which
causes more code churn than I wanted in this commit. I still
synchronized the example versions on 3.4.0, though, as it was already
being used in some examples and the examples don't use initMocks.
Updated protobuf gradle plugin version to 0.8.13. Fixed Android Kokoro's memory issue by forcing to use a new Gradle daemon for building the previous commit.
javax.annotation-api is licensed CDDL, which was not noticed when it was
introduced. Tomcat provides an Apache 2 version of the same annotation. Note
that this annotation is only used when compiling with Java 9+.
Unfortunately this may cause classpath collisions since there are _many_ copies
of this annotation on Maven Central; we wanted one canonical source and
javax.annotation-api seemed like that source. We hope this won't impact many
users since we have always suggested using it only for compilation. But it will
probably impact some users. However, we didn't create this mess, this seems to
be "standard practice" for J2EE, which this annotation is now part of, so we're
just impacted by it.
Fixes#6833
yifeizhuang