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Posted to commits@activemq.apache.org by "Timothy Bish (JIRA)" <ji...@apache.org> on 2017/11/02 15:50:00 UTC
[jira] [Closed] (APLO-400) Connecting with paho.mqtt.client python
lib does not work and causes NullPointer java error
[ https://issues.apache.org/jira/browse/APLO-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timothy Bish closed APLO-400.
-----------------------------
Resolution: Won't Fix
The Apollo Broker is not really under active development so you most likely won't get any help here. I'd recommend using the ActiveMQ 5.15.2 release or trying out ActiveMQ Artemis.
> Connecting with paho.mqtt.client python lib does not work and causes NullPointer java error
> -------------------------------------------------------------------------------------------
>
> Key: APLO-400
> URL: https://issues.apache.org/jira/browse/APLO-400
> Project: ActiveMQ Apollo
> Issue Type: Bug
> Components: apollo-mqtt
> Affects Versions: 1.7.1
> Environment: Ubuntu 16.04 server x86_64
> Reporter: John W
> Priority: Major
>
> Was getting a `[Errno 54] Connection reset by peer` error on my python frontend which wasn't useful so I checked my connection log and found this:
> 2017-11-02 11:24:23,919 MQTT connection '/192.168.1.122:49730' error: Internal Server Error: java.lang.NullPointerException
> That lead me to take a look at the stacktrace:
> {code:java}
> 2017-11-02 11:24:23,919 | WARN | stackref=15f7965f9e0
> java.lang.NullPointerException
> at org.apache.activemq.apollo.mqtt.MqttProtocolHandler.on_mqtt_connect(MqttProtocolHandler.java:443)
> at org.apache.activemq.apollo.mqtt.MqttProtocolHandler$9.call(MqttProtocolHandler.java:410)
> at org.apache.activemq.apollo.util.UnitFn1.apply(Scala2JavaHelper.scala:41)
> at org.apache.activemq.apollo.mqtt.MqttProtocolHandler.on_transport_command(MqttProtocolHandler.java:377)
> at org.apache.activemq.apollo.broker.BrokerConnection.on_transport_command(Connection.scala:144)
> at org.apache.activemq.apollo.broker.Connection$$anon$1.onTransportCommand(Connection.scala:71)
> at org.fusesource.hawtdispatch.transport.TcpTransport.drainInbound(TcpTransport.java:709)
> at org.fusesource.hawtdispatch.transport.TcpTransport$9.run(TcpTransport.java:770)
> at org.fusesource.hawtdispatch.internal.SerialDispatchQueue.run(SerialDispatchQueue.java:100)
> at org.fusesource.hawtdispatch.internal.pool.SimpleThread.run(SimpleThread.java:77)
> {code}
> Any idea what this is?
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