java.lang.IllegalStateException: unknown user id: null (Multiple responses come from the bot after this exception)

[sethu424]

920022 [Grizzly(1)] ERROR com.ullink.slack.simpleslackapi.impl.SlackWebSocketSessionImpl - Endpoint#onError called java.lang.IllegalStateException: unknown user id: null at com.ullink.slack.simpleslackapi.impl.SlackJSONMessageParser.parseMessagePublished(SlackJSONMessageParser.java:236) at com.ullink.slack.simpleslackapi.impl.SlackJSONMessageParser.extractMessageEvent(SlackJSONMessageParser.java:177) at com.ullink.slack.simpleslackapi.impl.SlackJSONMessageParser.decode(SlackJSONMessageParser.java:66) at com.ullink.slack.simpleslackapi.impl.SlackWebSocketSessionImpl.onMessage(SlackWebSocketSessionImpl.java:883) at com.ullink.slack.simpleslackapi.impl.SlackWebSocketSessionImpl.onMessage(SlackWebSocketSessionImpl.java:41) at org.glassfish.tyrus.core.TyrusSession.notifyMessageHandlers(TyrusSession.java:576) at org.glassfish.tyrus.core.TyrusEndpointWrapper.onMessage(TyrusEndpointWrapper.java:879) at org.glassfish.tyrus.core.TyrusWebSocket.onMessage(TyrusWebSocket.java:216) at org.glassfish.tyrus.core.frame.TextFrame.respond(TextFrame.java:139) at org.glassfish.tyrus.core.ProtocolHandler.process(ProtocolHandler.java:807) at org.glassfish.tyrus.client.TyrusClientEngine$TyrusReadHandler.handle(TyrusClientEngine.java:747) at org.glassfish.tyrus.container.grizzly.client.GrizzlyClientFilter$ProcessTask.execute(GrizzlyClientFilter.java:476) at org.glassfish.tyrus.container.grizzly.client.TaskProcessor.processTask(TaskProcessor.java:114) at org.glassfish.tyrus.container.grizzly.client.TaskProcessor.processTask(TaskProcessor.java:91) at org.glassfish.tyrus.container.grizzly.client.GrizzlyClientFilter.handleRead(GrizzlyClientFilter.java:272) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:526) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571) at java.lang.Thread.run(Thread.java:745)

[Omertron]

I also get this error with the latest build

[Omertron]

Ok, a little investigation and it seems to happen when the bot gets a response to a thread.

It might be because there are more than one "user" fields in the message?

{
   "type":"message",
   "message":{
      "type":"message",
      "user":"U3Q3F5S03",
      "text":"Chaosmos? ",
      "thread_ts":"1492969186.101457",
      "reply_count":1,
      "replies":[
         {
            "user":"U3Q24PWRZ",
            "ts":"1492969381.113931"
         }
      ],
      "unread_count":1,
      "ts":"1492969186.101457"
   },
   "subtype":"message_replied",
   "hidden":true,
   "channel":"C3Q44NRDG",
   "event_ts":"1492969381.113939",
   "ts":"1492969381.113939"
}

[alex-tee]

happens when commenting on an uploaded picture