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Ran 19 Apr 2021 04:31PM UTC

Files 445

Run time 5min

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Committed 19 Apr 2021 04:16PM UTC coverage: 88.011% (-0.03%) from 88.044%

Job # GRADLE_OPTS=-Xmx512m LDFLAGS=-L/tmp/protobuf/lib CXXFLAGS=-I/tmp/protobuf/include LD_LIBRARY_PATH=/tmp/protobuf/lib

Build Type

push

travis-ci

Committed by

ejona86

Commit Message

Upgrade to Guava 30.1, which warns on Java 7

This change can have large impact from two aspects:
1. It calls out a _large_ impact on the _few_ Java 7 users.
2. It may have _small_ impact on the _many_ Android users.

https://github.com/grpc/grpc-java/issues/4671 tracks gRPC's removal of
Java 7 support. We are quite eager to drop Java 7 support as that would
allow using new language features like default methods. Guava is also
dropping Java 7 support and starting in 30.1 it will warn when used on
Java 7. The purpose of the warning is to help discover users that are
negatively impacted by dropping Java 7 before it becomes a bigger
problem.

The Guava logging check was implemented in such a way that there is an
optional class that uses Java 8 bytecode. While the class is optional at
runtime, the Android build system notices when dexing and fails if
Java 8 language featutres are not enabled. We believe this will not be a
problem for most Android users, but they may need to add to their build:

```
android {
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}
```

See also https://github.com/google/guava/releases/tag/v30.1

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