I am trying to use activiti:executionListener ub a service task.
<activiti:executionListener event="start" class="org.activiti.engine.impl.bpmn.listener.ScriptTaskListener">
<activiti:field name="script">
<activiti:string>execution.setVariable("test_var","test");</activiti:string>
</activiti:field>
<activiti:field name="language">
<activiti:string>javascript</activiti:string>
</activiti:field>
</activiti:executionListener>
I am getting the following error every time I execute my workflow.
org.activiti.engine.ActivitiIllegalArgumentException: org.activiti.engine.impl.bpmn.listener.ScriptTaskListener doesn't implement interface org.activiti.engine.delegate.ExecutionListener nor interface org.activiti.engine.delegate.JavaDelegate
at org.activiti.engine.impl.bpmn.helper.ClassDelegate.getExecutionListenerInstance(ClassDelegate.java:84)
at org.activiti.engine.impl.bpmn.helper.ClassDelegate.notify(ClassDelegate.java:70)
at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:42)
at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:96)
at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:621)
at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:616)
at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:49)
at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:96)
at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:621)
at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:616)
at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreate
