Issue sending a signal

[jperejor]

Hi,

I'm making tests locally with "AIO - SDK 4.0". I want to cancel a user task after receiving a signal, this is a snippet of the bpmn:

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <signal id="mySignal" name="mySignalName" />
  <process id="myProcess" name="My process" isExecutable="true">
    ...
    <userTask id="usertask1" name="Task 1" activiti:assignee="${initiator.properties.username}">
      <extensionElements>
        <activiti:formProperty id="taskValue1" name="Task Value 1" type="string"></activiti:formProperty>
      </extensionElements>
    </userTask>
    <sequenceFlow id="flow2" sourceRef="scripttask1" targetRef="usertask1"></sequenceFlow>
    <boundaryEvent id="boundarysignal1" name="Signal" attachedToRef="usertask1" cancelActivity="true">
      <signalEventDefinition signalRef="mySignal" />
    </boundaryEvent>
    <sequenceFlow id="flow4" sourceRef="boundarysignal1" targetRef="scripttask1"></sequenceFlow>
    ...
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">
    ...
  </bpmndi:BPMNDiagram>
</definitions>

Here is the process diagram:

I have a service which is called from a webscript, the definition in service-context.xml is:

<bean id="myActivitiUtil" class="com.someco.bean.MyActivitiUtil">
    <property name="runtimeService" ref="activitiRuntimeService" />
</bean>

So far so good, the runtimeService correctly retrieves me the only instance I have with the boundary event, with;

List<Execution> executions = runtimeService.createExecutionQuery().signalEventSubscriptionName(signal).list();
for (Execution execution : executions) {
    ...
}

The problem is when inside the loop I call:

runtimeService.signalEventReceived(signal, execution.getId());

I get the error:

content-tutorial-acs_1       |  2020-01-06 16:22:19,763  ERROR [impl.interceptor.CommandContext] [http-nio-8080-exec-3] Error while closing command context
content-tutorial-acs_1       |  org.apache.ibatis.exceptions.PersistenceException:
content-tutorial-acs_1       | ### Error querying database.  Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class java.util.ArrayList with invalid types () or values (). Cause: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "accessDeclaredMembers")
content-tutorial-acs_1       | ### The error may exist in org/activiti/db/mapping/entity/HistoricVariableInstance.xml
content-tutorial-acs_1       | ### The error may involve org.activiti.engine.impl.persistence.entity.HistoricVariableInstanceEntity.selectHistoricVariableInstanceByVariableInstanceId
content-tutorial-acs_1       | ### The error occurred while handling results
content-tutorial-acs_1       | ### SQL: select * from ACT_HI_VARINST where ID_ = ?
content-tutorial-acs_1       | ### Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating class java.util.ArrayList with invalid types () or values (). Cause: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "accessDeclaredMembers")
content-tutorial-acs_1       |  at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
...

Any help would be much appreciate. Thanks.