Script listener on Issue watcher added event

[Karolína Vavříková]

Hello,

I've been trying to set up a listener, which would send e-mail notification to a watcher when he is added to an issue (kind of like request participant notification for customers).

I have tried 2 listeners:
- Send a custom mail

- Fires an event when condition is true

In both cases: When I leave the condition blank, the listener won't run. When I add a condition for a project key, it runs and then shows this:

Cannot cast object 'com.atlassian.jira.event.issue.IssueWatcherAddedEvent@cc2c2bfd' with class 'com.atlassian.jira.event.issue.IssueWatcherAddedEvent' to class 'com.atlassian.jira.event.issue.IssueEvent'

[Tarun Sapra · Accepted solution]

Hello @Karolína Vavříková

Can you please share screenshot of the configuration and code, as it seems you are trying to cast the WatcherAddedEvent object to IssueEvent.

[Tarun Sapra]

Because if you see here

https://docs.atlassian.com/software/jira/docs/api/7.6.1/com/atlassian/jira/event/AbstractEvent.html

The classes IssueEvent and IssueWatcherAddedEvent are parallel in hierarchy under AbstractEvent class and thus can't be cast

[Karolína Vavříková]

well, that's...nice... So how do I bypass that?

[Tarun Sapra]

If you leave it blank then you say that it's not running, do you have something from the logs?

Because from the original error msg if you have some condition and you get the error

Cannot cast object 'com.atlassian.jira.event.issue.IssueWatcherAddedEvent@cc2c2bfd' with class 'com.atlassian.jira.event.issue.IssueWatcherAddedEvent' to class 'com.atlassian.jira.event.issue.IssueEvent'

It more or less seems like a bug in the internal working of the plugin as you are not explicitly casting the issue object.

[Tarun Sapra]

Hello @Karolína Vavříková

Did you try creating a request in the Adaptavist support portal for this issue.

[Karolína Vavříková]

Hi,  not yet. I have found out that we have an update pending, so I will test it first. Thank you for your help, though!

[hellboy007]

How can I solve problem?

[Karolína Vavříková]

Hi @huw, @Tarun Sapra

I have filed a bug, however, I don't have any good news. Adaptavist agent told me this:

it looks like the 'Fires an event...' listener has the same underlying restriction as the custom email listener, just buried more deeply in the implementation. I will file a development ticket to see whether this restriction can be lifted, or at least more explicitly outlined in the documentation.

I have asked how to bypass that and achieve desired result, but no answer yet.

[Karolína Vavříková]

aand the reply follows:

One way you could do it would be to set up a custom scripted listener on the IssueWatcherAddedEvent and in the script, fetch the watcher's email address (event.applicationUser.emailAddress) and send a message to it via the MailQueue

[huw]

Thanks for the update. 

[huw]

We have exactly the same use case and error. Did you plugin/app update cure it? 

[Karolína Vavříková]

Hi @huw, unfortunately, update didn't work, still the same issue.
I filed a bug in Adaptavist customer portal.

The custom email listener is currently not compatible with events other than IssueEvent: 
the other option should be working, though, so they are looking into it.

I will keep you updated