deleteIdentityLink does not delete the IdentityLink

[reggieoki]

The TaskEnity method "deleteIdentityLiink" does not remove existing IdentityLinks.

I want to clear out any existing IdentityLink then add my Candidate Groups.  But when I use the "deleteIdentityLink" method to clear out all IdentityLink, then retrieving the list of Candidates, they are still there.

The ACT_RU_IDENTITYLINK table indicates that the specified IdentityLinks were not removed.

Below is a snippet of code.  Any suggestions?

    java.util.Set<IdentityLink> Candidates = task.getCandidates();

    for (IdentityLink temp: Candidates) {
      task.deleteIdentityLink(temp.getUserId(), temp.getGroupId(), temp.getType());
    }

    Candidates = task.getCandidates();

    task.addCandidateGroup("testGroup1");
    task.addCandidateGroup("testGroup2");

    Candidates = task.getCandidates();

[reggieoki]

Additional information, the Activiti version is 5.6 and the database is H2.

Thanks for any assistance.

[reggieoki]

Further debug information,

When attemting to delete the canidates deleteIdentityLink is called from TaskEntity.
Code from TaskEntity:
public void deleteIdentityLink(String userId, String groupId, String type) {
    List<IdentityLinkEntity> identityLinks = Context
      .getCommandContext()
      .getIdentityLinkManager()
      .findIdentityLinkByTaskUserGroupAndType(id, userId, groupId, type);
   
    for (IdentityLinkEntity identityLink: identityLinks) {
      Context
        .getCommandContext()
        .getDbSqlSession()
        .delete(IdentityLinkEntity.class, identityLink.getId());
    }
  }
In the above code identityLinks is an emty set. Which is weird since when getIdentityLinks from TaskEntity is called there are results. Both should be querying the database.

Any Thoughts?

[jbarrez]

You should use the API methods on the public service API:

see deleteUserIdentityLink and deleteGroupIdentityLink