gRPC Java 1.19.0 Released

[Carl Mastrangelo]

gRPC Java 1.19.0 is now released.   It should be ready use from Maven Central and JCenter.

https://github.com/grpc/grpc-java/releases/tag/v1.19.0

Dependencies and Build Changes

• Upgraded to protobuf 3.6.1 (#5320)
• Google App Engine Java 7 is no longer supported, as it was shut down. Java 8 is supported.
• Upgraded Guava to 26.0-android
• Add "fake" Bazel dependency on Guava's failureaccess to fix dependency handling issue in maven_jar (#5350)
• Upgraded OpenCensus to v0.19.2 (#5329)

Bug Fixes

• Fixed Service Config DNS parsing to match specification (Service Config is still off by default) (#5293)
• OkHttp no longer spams NPE when connecting to a server that's down (#5260)
• Context avoids leaking ClassLoader through a ThreadLocal (#5290)
• Status is now preserved when getting a RST_STREAM with no error (#5264)
• Removed Channel reference from ManagedChannelWrapper to avoid a memory leak (#5283)
• Avoid NPE in Cronet after the transport has shutdown (#5275)
• Fixed a channel panic caused by calling NameResolver.refresh() (#5223)

New Features

• New artifact grpc-bom is added (#5209)
• Each ManagedChannel can now have its own ProxyDetector (#5173)

Behavior Changes

• If enabled, health checking defaults to SERVING if the name unspecified (#5274)
• Graceful Netty server shutdown now issues two GOAWAYs (#5351)
• Client-side health checking now warns if disabled (#5261)

API Changes

• Removed DEFAULT_CONNECTION_SPEC from OkHttpChannelBuilder (#5309)
• NettyChannelBuilder now accepts a channelFactory (#5312)
• NettyServerBuilder supports listening on multiple sockets (#5306)
• CallCredentials is now preferred over CallCredentials2 (#5216)
• ProxiedSocketAddress is added as an Experimental API (#5344)
• Added NameResolver.Helper, for use with new NameResolver.newNameResolver() overload (#5345)
• Deprecated previous NameResolver.newNameResolver() overload (#5345)

Documentation

• SECURITY.md recommendations updated and reorganized (#5281)

Acknowledgments

Thanks to all of our contributors:

• Arajit Samanta @arajitsamanta
• Bogdan Drutu @bogdandrutu
• Danna Kelmer @dkelmer
• Ignacio del Valle Alles @idelvall
• Michael Plump @plumpy
• Tim van der Lippe @TimvdLippe
• Yang Song @songy23
• kenji yoshida @xuwei-k