Question / Problem with runtimeService.getVariable(

[hamed]

Hi
I'm using drools with Activiti , I have businessRuleTask in my processDef .
in my code

Message message = new Message(); //mySampleObject
      message.setMessage("hello Activiti");
      message.setStatus(Message.HELLO);
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after that i put the variable

runtimeService.setVariable(executionId, "myMessage", message);
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It returns ArrayList when I retrieve it !!!?? Why?

runtimeService.getVariable(processInstance.getId(), "myMessageOutPut"); 
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[hamed]

I found it any Object (custom) used in businessRuleTask has this problem !

[hamed]

I'm really sorry ,I didn't  pay attention to user guide !

Note that the result variable will contain a List of objects. If no result variable name is specified by default org.activiti.engine.rules.OUTPUT is used.