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Initialize frame handler's connection reference before sending header #2017

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Merged
acogoluegnes merged 1 commit into from
Jul 9, 2026
+4 −2
Merged

Initialize frame handler's connection reference before sending header #2017

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6 changes: 4 additions & 2 deletions src/main/java/com/rabbitmq/client/impl/AMQConnection.java
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Original file line number Diff line number Diff line change
Expand Up @@ -321,6 +321,10 @@ public void start()
// initiator) is to wait for a connection.start method to
// arrive.
_channel0.enqueueRpc(connStartBlocker);
// Must happen before the header is sent: sending it can make the broker reply
// immediately, and the I/O thread that reads that reply needs the connection
// reference to already be in place, or it hits a null reference.
this._frameHandler.initialize(this);
try {
// The following two lines are akin to AMQChannel's
// transmit() method for this pseudo-RPC.
Expand All @@ -331,8 +335,6 @@ public void start()
throw ioe;
}

this._frameHandler.initialize(this);

AMQP.Connection.Start connStart;
AMQP.Connection.Tune connTune = null;
try {
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