#20176
89%

Ran 20 Feb 2026 03:43PM UTC

Jobs 1

Files 630

Run time 1min

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Committed 20 Feb 2026 03:31PM UTC coverage: 88.714% (+0.007%) from 88.707%

Build # #20176

Build Type

push

github

Committed by

web-flow

Commit Message

netty: Preserve early server handshake failure cause in logs

Early server-side negotiation failures may terminate a transport before
NettyServerHandler is fully active in the pipeline. In those cases, the
original handshake failure can be missing from transport termination
logging because termination may rely on connectionError(), which can be
null on this early path.

This change adds a server-side NOOP write in
NettyServerTransport.start() (analogous to the existing client-side NOOP
write path). If that write fails, its cause is passed to
notifyTerminated(), preserving and logging the original transport
termination reason for debugging.

To support this, NettyServerHandler now accepts NOOP_MESSAGE writes by
writing an empty buffer, and tests are added to verify:
  - transport failure logging for plaintext-client to TLS-server failure
  - server NOOP write handling in NettyServerHandler

Fixes #8495

Run Details

35459 of 39970 relevant lines covered (88.71%)

0.89 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
2	81.05	0.0%	../okhttp/src/main/java/io/grpc/okhttp/ExceptionHandlingFrameWriter.java
2	92.94	-0.28%	../okhttp/src/main/java/io/grpc/okhttp/OkHttpClientTransport.java
3	93.22	-1.69%	../core/src/main/java/io/grpc/internal/AbstractClientStream.java
5	83.02	-9.43%	../core/src/main/java/io/grpc/internal/Http2Ping.java
7	92.55	0.33%	../netty/src/main/java/io/grpc/netty/NettyServerTransport.java
45	91.18	0.05%	../netty/src/main/java/io/grpc/netty/NettyServerHandler.java

Jobs

ID	Job ID	Ran	Files	Coverage
1	#20176.1	20 Feb 2026 03:43PM UTC	630	88.71

grpc / grpc-java / #20176
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grpc / grpc-java / #20176 89%

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