This resolves#5523
While bumping `com.android.tools.build:gradle:3.1.2` to `3.3.0`, some other plugins/artifacts/maven repo/buildscripts have to be updated:
- gradle (wrapper) need to upgrade to 4.10.x
- protobuf gradle plugin need to bump a version compatible with gradle version.
- need add `google()` and `jcenter()` repos for android (otherwise `com.android.tools.build:aapt2:3.3.0x` and `trove4j` will not be found resp.)
- need to accept license for Android "build-tools;28.0.3" in kokoro env.
This opens up the ability of dependency locking and the now-stable Maven
Publish Plugin. Also failOnVersionConflict no longer needs to be
commented out for the dependency insight report.
The new jmh plugin fixes a warning for the newer version of Gradle.
The new AppEngine plugin still produces a warning, but updating it
anyway so people know that upgrading the plugin doesn't fix the problem.
The new android-maven plugin fixes a build problem with the newer
Gradle.
The Visual Studio fixes were necessary starting ~4.4.
https://github.com/gradle/gradle-native/issues/34#issuecomment-335222096
describes the change in behavior.
There's nothing immediately being used as part of this update. It's just
to keep us current and to get us over that Visual Studio change hump.
The examples are no longer part of the normal build, although they are
built with Travis. The examples now include their own copy of the gradle
wrapper to ease usage from IDEs which can now properly detect the
correct version of gradle to use.
The build files were generated using "gradle init" and "mvn
archetype:generate" and then modified following our README.
Fixes#1414
Eric Anderson
ZHANG Dapeng
Eric Gribkoff
Carl Mastrangelo