AEM 6.5.6: Workflow> Models Touch UI Showing blank white screen | Community
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sagar_verliani
Level 2
October 26, 2020
Solved

AEM 6.5.6: Workflow> Models Touch UI Showing blank white screen

  • October 26, 2020
  • 2 replies
  • 3248 views

Hello All,

 

We have upgraded our project from AEM 6.4 to 6.5.6. We are getting blank screen when looked in workflow models Touch UI console.

All the workflow related bundles are active.

We can see all our custom and ootb workflow models in classic UI and the functionality also seemed to be working fine when triggered from Classic UI.

All our workflow models are present under either /conf or /var.

 

We are getting below error log when accessing workflow models from touch UI console.

 

26.10.2020 06:02:57.590 *ERROR* [198.212.71.164 [1603692177518] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1] org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught SlingException
java.lang.NullPointerException: null
	at org.apache.jsp.libs.cq.workflow.admin.console.components.item.workflowmodel.card.card_jsp._jspService(card_jsp.java:503)
	at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) [org.apache.sling.scripting.jsp:2.3.6]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) [org.apache.felix.http.servlet-api:1.1.2]
	at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502) [org.apache.sling.scripting.jsp:2.3.6]

 

Regards,

Sagar

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Best answer by vanegi

@sagar_verliani,

In that case, if you used the Touch UI to open the "E-mailTest" workflow and click 'Edit', it would have created this /conf node -- you must do this to make changes and to have had the 'lastupdatedby' value change from default 'admin'.

 

You can resolve the issue by copying the node from /etc/workflow/models/E-mailTest and pasting it under /conf ( /conf/global/settings/workflow/models/E-mailTest).

 

Please ensure package is not causing deletion of the "design-time" version of the models [1].

 

[1]:- https://docs.adobe.com/content/help/en/experience-manager-65/developing/extending-aem/extending-workflows/workflows-best-practices.html#locations

26.10.2020 13:07:11.852 *WARN* [198.212.71.164 [1603717631804] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1] libs.cq.workflow.admin.console.components.item.workflowmodel.card.card$jsp Design time path not found for model with ID: /var/workflow/models/E-mailTest

 

Thanks!!

2 replies

vanegi
Adobe Employee
vanegiAdobe Employee
Adobe Employee
October 26, 2020

Hi @sagar_verliani,

Can you share complete error.log when you load the workflow model screen? To my understanding, it should also show some warning related to workflow model similar to [1] before throwing the given null pointer exception.

 

[1]:

20.10.2020 18:21:14.269 *WARN* [103.43.112.97 [1589998873989] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1] libs.cq.workflow.admin.console.components.item.workflowmodel.card.card$jsp Design time path not found for model with ID: /var/workflow/models/avalara-page-activate

 

If you see similar logging like above "Design time path not found for model with ID", then that means the workflow model is not present in the design time path (/conf/global/settings/workflow/models).

 

Thanks!!

    S
    sagar_verlianiAuthor
    Level 2
    October 26, 2020

    Hello!

    We are getting this warning repeatedly just above error. You were right here.

     

    26.10.2020 13:07:11.852 *WARN* [198.212.71.164 [1603717631804] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1] libs.cq.workflow.admin.console.components.item.workflowmodel.card.card$jsp Design time path not found for model with ID: /var/workflow/models/E-mailTest

     

    vanegi
    Adobe Employee
    vanegiAdobe EmployeeAccepted solution
    Adobe Employee
    October 26, 2020

    @sagar_verliani,

    In that case, if you used the Touch UI to open the "E-mailTest" workflow and click 'Edit', it would have created this /conf node -- you must do this to make changes and to have had the 'lastupdatedby' value change from default 'admin'.

     

    You can resolve the issue by copying the node from /etc/workflow/models/E-mailTest and pasting it under /conf ( /conf/global/settings/workflow/models/E-mailTest).

     

    Please ensure package is not causing deletion of the "design-time" version of the models [1].

     

    [1]:- https://docs.adobe.com/content/help/en/experience-manager-65/developing/extending-aem/extending-workflows/workflows-best-practices.html#locations

    26.10.2020 13:07:11.852 *WARN* [198.212.71.164 [1603717631804] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1] libs.cq.workflow.admin.console.components.item.workflowmodel.card.card$jsp Design time path not found for model with ID: /var/workflow/models/E-mailTest

     

    Thanks!!
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