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Upgrading fixes a rules_go incompatibility with Bazel 9.1 (as mentioned in the Bazel 9.1 release notes), although this specific version was selected simply because it was the newest. Googleapis greatly reduced their dependencies, so we no longer have transitive dependencies on grpc (C repo) and rules_go, which cleans up our dependencies considerably.
This backs up our claim that we support the two most recent Bazel versions.
jdcormie
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Sep 16, 2026
…orClientInterceptor (grpc#13022) Prevent concurrent cancellations of the underlying ClientCall in ExternalProcessorClientInterceptor: - Wrap rawCall with SimpleForwardingClientCall using an AtomicBoolean to ensure the underlying ClientCall.cancel() is executed at most once, even if invoked concurrently across threads or from DelayedListener. - In DataPlaneClientCall.cancel(), atomically transition extProcStreamState to FAILED, catch exceptions during onError(), and clear extProcClientCallRequestObserver. - In sendToExtProc(), return early if the ext-proc stream is already completed or the observer is null, and catch unexpected onNext() exceptions to trigger internalOnError() rather than letting exceptions escape into listener callbacks. - Safely complete and clear extProcClientCallRequestObserver in closeExtProcStream() and halfCloseExtProcStream(). - Route all rawCall.cancel() calls in sendMessage(), handleImmediateResponse(), and DataPlaneListener through cancelDownstream(). Fixes the TSAN detected race condition below. The previous fix in commit cf92f2d introduced `AtomicBoolean downstreamCancelled` in `cancelDownstream()`. However, the TSAN data race still reproduced under postsubmit because `DelayedListener` exception path bypasses `cancelDownstream()`: When `DelayedClientCall.start(wrappedListener, headers)` is called, it registers an internal `DelayedListener`. If `wrappedListener.onHeaders()` throws any exception, `DelayedListener.deliverHeaders()` catches it and calls `exceptionThrown()`, which invokes `delayedCall.cancel()` directly. Once `delayedCall` has been activated `(realCall != null)`, `DelayedClientCall.cancel()` directly calls `realCall.cancel()` on whatever thread triggered it without any de-duplication. ``` Details ================== WARNING: ThreadSanitizer: data race (pid=7774) Read of size 1 at 0x000089d8a086 by thread T113: #0 io.grpc.internal.ClientCallImpl.cancelInternal(Ljava/lang/String;Ljava/lang/Throwable;)V ClientCallImpl.java:464 #1 io.grpc.internal.ClientCallImpl.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ClientCallImpl.java:455 #2 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 #3 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 #4 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 #5 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 #6 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 #7 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 grpc#8 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 grpc#9 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 grpc#10 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 grpc#11 io.grpc.internal.DelayedClientCall$2.run()V DelayedClientCall.java:269 grpc#12 io.grpc.internal.DelayedClientCall.delayOrExecute(Ljava/lang/Runnable;)V DelayedClientCall.java:292 grpc#13 io.grpc.internal.DelayedClientCall.cancel(Lio/grpc/Status;Z)V DelayedClientCall.java:266 grpc#14 io.grpc.internal.DelayedClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V DelayedClientCall.java:242 grpc#15 io.grpc.xds.ExternalProcessorClientInterceptor$DataPlaneClientCall.internalOnError(Ljava/lang/Throwable;)V ExternalProcessorClientInterceptor.java:715 grpc#16 io.grpc.xds.ExternalProcessorClientInterceptor$DataPlaneClientCall$1.onNext(Lio/envoyproxy/envoy/service/ext_proc/v3/ProcessingResponse;)V ExternalProcessorClientInterceptor.java:457 grpc#17 io.grpc.xds.ExternalProcessorClientInterceptor$DataPlaneClientCall$1.onNext(Ljava/lang/Object;)V ExternalProcessorClientInterceptor.java:426 grpc#18 io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onMessage(Ljava/lang/Object;)V ClientCalls.java:568 grpc#19 io.grpc.ForwardingClientCallListener.onMessage(Ljava/lang/Object;)V ForwardingClientCallListener.java:33 grpc#20 io.grpc.ForwardingClientCallListener.onMessage(Ljava/lang/Object;)V ForwardingClientCallListener.java:33 grpc#21 io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInternal()V ClientCallImpl.java:662 grpc#22 io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext()V ClientCallImpl.java:649 grpc#23 io.grpc.internal.ContextRunnable.run()V ContextRunnable.java:37 grpc#24 io.grpc.internal.SerializingExecutor.run()V SerializingExecutor.java:133 grpc#25 io.grpc.internal.SerializingExecutor.run()V SerializingExecutor.java:133 grpc#26 java.util.concurrent.ThreadPoolExecutor.runWorker(Ljava/util/concurrent/ThreadPoolExecutor$Worker;)V ThreadPoolExecutor.java:1090 grpc#27 java.util.concurrent.ThreadPoolExecutor$Worker.run()V ThreadPoolExecutor.java:614 grpc#28 java.lang.Thread.runWith(Ljava/lang/Object;Ljava/lang/Runnable;)V Thread.java:1560 grpc#29 java.lang.Thread.run()V Thread.java:1547 grpc#30 (Generated Stub) <null> Previous write of size 1 at 0x000089d8a086 by thread T29: #0 io.grpc.internal.ClientCallImpl.cancelInternal(Ljava/lang/String;Ljava/lang/Throwable;)V ClientCallImpl.java:467 #1 io.grpc.internal.ClientCallImpl.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ClientCallImpl.java:455 #2 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 #3 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 #4 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 #5 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 #6 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 #7 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 grpc#8 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 grpc#9 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 grpc#10 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 grpc#11 io.grpc.internal.DelayedClientCall$2.run()V DelayedClientCall.java:269 grpc#12 io.grpc.internal.DelayedClientCall.delayOrExecute(Ljava/lang/Runnable;)V DelayedClientCall.java:292 grpc#13 io.grpc.internal.DelayedClientCall.cancel(Lio/grpc/Status;Z)V DelayedClientCall.java:266 grpc#14 io.grpc.internal.DelayedClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V DelayedClientCall.java:242 grpc#15 io.grpc.PartialForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V PartialForwardingClientCall.java:39 grpc#16 io.grpc.ForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:22 grpc#17 io.grpc.ForwardingClientCall$SimpleForwardingClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ForwardingClientCall.java:44 grpc#18 io.grpc.xds.ExternalProcessorClientInterceptor$DataPlaneClientCall.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V ExternalProcessorClientInterceptor.java:887 grpc#19 io.grpc.xds.XdsNameResolver$RawMessageClientInterceptor$2.cancel(Ljava/lang/String;Ljava/lang/Throwable;)V XdsNameResolver.java:1182 grpc#20 io.grpc.xds.ExternalProcessorClientInterceptorTest.clientInterceptor_contextPropagatedToStartCall()V ExternalProcessorClientInterceptorTest.java:13411 ```
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