Bpmn Model Api Delegation Code

gistfile1.java

public class ExampleServiceTask implements JavaDelegate {

  public void execute(DelegateExecution execution) throws Exception {
    BpmnModelInstance modelInstance = execution.getBpmnModelInstance();
    ServiceTask serviceTask = (ServiceTask) execution.getBpmnModelElementInstance();

    // read properties from model:
    serviceTask.getIoSpecification();
    //... 
  }
}