AT:

• cadidate groups can be recovered from history

We still working with the adaptation of our current application from Activiti to Camunda.
Our current version is working well except how we can recover the candidates from a finalised task, when it was active.

In Activiti (5.14) this information is stored in the ACT_HI_IDENTITYLINK table, and can be retrieved via API: historyService.getHistoricIdentityLinksForProcessInstance(processInstanceId)

However, Camunda didn't provide this method and we are not able to find an equivalent one.