I am trying to complete a user task for which fozzie is the assignee.
The code is :
TaskService taskService = processEngine.getTaskService();
List<Task> tasks = taskService.createTaskQuery().taskAssignee(user?.username)?.list();
taskService.complete(tasks.get(0).getId(),variables);
But exception occurrs as follows :
rg.activiti.engine.ActivitiException: Provided id is null
at org.activiti.engine.impl.UserQueryImpl.userId(UserQueryImpl.java:53)
at Script1.run(Script1.groovy:4)
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:315)
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:111)
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:216)
I tried
IdentityService identityService = processEngine.getIdentityService();
identityService.setAuthenticatedUserId("fozzie")
But it does not work.
I guess i am unable to create a session with user as fozzie.
Can you please help in this regard.