[jboss-jira] [JBoss JIRA] (DROOLS-3350) [DMN Designer] Error when user creates relations between elements

[Michael Anstis (Jira)]

    [ https://issues.jboss.org/browse/DROOLS-3350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665508#comment-13665508 ] 

Michael Anstis commented on DROOLS-3350:
----------------------------------------

This also happens in the BPMN2 editor.

You need to add connectors between nodes "quickly" in succession. I suspect an animation somewhere is causing the issue. 

> [DMN Designer] Error when user creates relations between elements
> -----------------------------------------------------------------
>
>                 Key: DROOLS-3350
>                 URL: https://issues.jboss.org/browse/DROOLS-3350
>             Project: Drools
>          Issue Type: Bug
>          Components: Stunner
>            Reporter: Guilherme Carreiro
>            Assignee: Roger Martínez
>            Priority: Minor
>              Labels: drools-tools
>         Attachments: error.gif
>
>
> Sometimes, when user creates relations between some diagram elements, an error popup appears.
> ---
> Steps to reproduce:
>  !error.gif|thumbnail! 
> The error copied to clipboard in the GIF is here:
> {{Uncaught exception: Exception caught: (TypeError) : Cannot read property 'tT' of null Caused by: (TypeError) : Cannot read property 'tT' of null | Uncaught exception: Exception caught: (TypeError) : Cannot read property 'tT' of null Caused by: (TypeError) : Cannot read property 'tT' of null | Uncaught exception: Exception caught: (TypeError) : Cannot read property 'tT' of null Caused by: (TypeError) : Cannot read property 'tT' of null | Uncaught exception: Exception caught: (TypeError) : Cannot read property 'tT' of null Caused by: (TypeError) : Cannot read property 'tT' of null}}
> ---
> (Since it's an intermittent issue, sometimes the steps above do not show the issue).



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