Release 1.3.4#500
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The inbound QUIC server path invokes the application connection handler synchronously inside channelActive. When the handler rejects the connection by throwing (e.g. PeerAlreadyConnectedException for a duplicate/simultaneous peer), the handshake-waiter handler has already removed itself, so the exception reaches the Netty pipeline tail and logs a noisy 'exceptionCaught reached tail of pipeline' warning while leaking the rejected QuicChannel until idle timeout. Catch the exception in routeInboundHandshake and close the channel, mirroring the dial paths which already close on handler failure. Narrow the guard to catch(Exception) rather than Throwable so fatal Errors (OutOfMemoryError, LinkageError, ...) propagate instead of being downgraded to a routine connection close; logging stays at debug.
lucassaldanha
approved these changes
Jun 24, 2026
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Please review, approve, and Regular Merge (do not squash) this PR to trigger the Cloudsmith deployment.