Hi Alex,
My client (com.rabbitmq.amqp-client) is using the 0.9.1 protocol and I'm
including the `qpid-broker-core`,
`qpid-broker-plugins-amqp-1-0-protocol-bdb-link-store` and
`qpid-broker-plugins-memory-store` at version `7.1.5` (We have another
dependency which relies on a inferior version of `com.fasterxml.jackson` so
we couldn't use `7.1.7`).
This is my current config is:
```
{
"name": "TestBroker",
"modelVersion": "7.1",
"defaultVirtualHost": "default",
"authenticationproviders" : [{
"secureOnlyMechanisms": [],
"name": "plain",
"type": "Plain",
"users": [
{
"id": "03eb68b8-8e9c-42e0-a7d0-70d436ba22af",
"type": "managed",
"name": "${qpid.user.name}",
"password": "${qpid.user.password}"
}
]
}],
"ports" : [ {
"name" : "AMQP",
"port" : "${qpid.amqp_port}",
"authenticationProvider" : "plain",
"virtualhostaliases" : [ {
"name" : "nameAlias",
"type" : "nameAlias"
}, {
"name" : "defaultAlias",
"type" : "defaultAlias"
}, {
"name" : "hostnameAlias",
"type" : "hostnameAlias"
} ]
}],
"virtualhostnodes" : [{
"name" : "default",
"type" : "JSON",
"defaultVirtualHostNode" : "true",
"virtualHostInitialConfiguration" : "{\"type\": \"Memory\"}",
"preferenceStoreAttributes": {"type": "Noop"}
}]
}
```
And without the `qpid-broker-plugins-amqp-1-0-protocol-bdb-link-store`
dependency I get exceptions of this type:
```
Exception in thread "IO-/0:0:0:0:0:0:0:1:59163"
java.lang.NullPointerException
at
org.apache.qpid.server.transport.MultiVersionProtocolEngine$SelfDelegateProtocolEngine.received(MultiVersionProtocolEngine.java:467)
at
org.apache.qpid.server.transport.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:135)
at
org.apache.qpid.server.transport.NonBlockingConnection.processAmqpData(NonBlockingConnection.java:611)
at
org.apache.qpid.server.transport.NonBlockingConnectionPlainDelegate.processData(NonBlockingConnectionPlainDelegate.java:58)
at
org.apache.qpid.server.transport.NonBlockingConnection.doRead(NonBlockingConnection.java:496)
at
org.apache.qpid.server.transport.NonBlockingConnection.doWork(NonBlockingConnection.java:270)
at
org.apache.qpid.server.transport.NetworkConnectionScheduler.processConnection(NetworkConnectionScheduler.java:134)
at
org.apache.qpid.server.transport.SelectorThread$ConnectionProcessor.processConnection(SelectorThread.java:575)
at
org.apache.qpid.server.transport.SelectorThread$SelectionTask.performSelect(SelectorThread.java:366)
at
org.apache.qpid.server.transport.SelectorThread$SelectionTask.run(SelectorThread.java:97)
at
org.apache.qpid.server.transport.SelectorThread.run(SelectorThread.java:533)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.apache.qpid.server.bytebuffer.QpidByteBufferFactory.lambda$null$0(QpidByteBufferFactory.java:464)
at java.lang.Thread.run(Thread.java:748)
```
At first, I tried to see if I was missing a dependency that added support
for 0.9.1 but as far as I can tell, that seems to be supported natively.
Since adding that dependency fixed that issue I didn't delve much more into
that.
Thanks,
Bruno
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