Crash due to use of getAlpnSelectedProtocol on Android 11

[eleventigerssc]

What version of gRPC-Java are you using?

1.25.0

What is your environment?

Android 11, target API level 30.

What did you expect to see?

Possibility to use grpc-java in apps targeting API 30 on Android 11 devices.

What did you see instead?

E  java.lang.AssertionError: Method getAlpnSelectedProtocol not supported for object SSL socket over Socket[address=redacted,port=443,localPort=40924]
E      at io.grpc.okhttp.internal.OptionalMethod.invoke(OptionalMethod.java:114)
E      at io.grpc.okhttp.internal.OptionalMethod.invokeWithoutCheckedException(OptionalMethod.java:135)
E      at io.grpc.okhttp.OkHttpProtocolNegotiator$AndroidNegotiator.getSelectedProtocol(OkHttpProtocolNegotiator.java:183)
E      at io.grpc.okhttp.OkHttpProtocolNegotiator$AndroidNegotiator.negotiate(OkHttpProtocolNegotiator.java:145)
E      at io.grpc.okhttp.OkHttpTlsUpgrader.upgrade(OkHttpTlsUpgrader.java:63)
E      at io.grpc.okhttp.OkHttpClientTransport$4.run(OkHttpClientTransport.java:568)
E      at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
E      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
E      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
E      at java.lang.Thread.run(Thread.java:923)

Steps to reproduce the bug

Use io.grpc:grpc-okhttp:1.25 transport and issue a gRPC request in an app compiled to target API 30 on Android 11. This happens due to outdated OkHttp while it seems the graylisted getAlpnSelectedProtocol method issue was fixed in https://square.github.io/okhttp/changelog_3x/#version-3147 (more info in: square/okhttp#3980). It is not possible to force grpc-okhttp to use 3x OkHttp as there are breaking changes, it also seems that the #6119 has stalled.

I am not sure if there is any workaround to this?

[eleventigerssc]

This seems to be fixed by 5803dfd, upgrading to 1.32.2 has solved the issue.