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Portlets Accessed by Multiple Users Show No Data, Partial Data or Remote Portlet Error (Doc ID 2896496.1)

Last updated on SEPTEMBER 16, 2022

Applies to:

Oracle WebCenter Portal - Version 12.2.1.4.0 and later
Information in this document applies to any platform.

Symptoms

Portlets fail when several users access the portlets simultaneously.
Issue happens after upgrading from 11g to 12c.

The Portlets come as blank, with partial data or they show the following error:

ERROR 

Remote Portlet Error

 

The Portlet diagnostic log shows the following error intermittently: 

[<date-time>] [WC_Portlet] [WARNING] [ADF_FACES-00009] [oracle.adf.view.rich.component.fragment.UIXRegion] [tid: [ACTIVE].ExecuteThread: '9' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <USER>] [ecid: <ECID>] [APP: <Application-Name>] [partition-name: DOMAIN] [tenant-name: GLOBAL] [DSID: <DSID>] [J2EE_APP.name: <Application-Name>] [J2EE_MODULE.name: <Application-Name>] [WEBSERVICE.name: WSRP_v2_Service] [WEBSERVICE_PORT.name: WSRP_v2_Markup_Service] Error processing viewId: /<taskflow-name>/view URI: /<taskflow-name>/view actual-URI: /view.jsff.[[
javax.el.PropertyNotFoundException: Target Unreachable, identifier 'pageFlowScope' resolved to null
   at com.sun.el.parser.AstValue.getTarget(AstValue.java:173)
   at com.sun.el.parser.AstValue.getType(AstValue.java:85)
   at com.sun.el.ValueExpressionImpl.getType(ValueExpressionImpl.java:201)
   at oracle.adfinternal.view.faces.renderkit.rich.ValueRenderer.getValueExpressionType(ValueRenderer.java:184)
...

 


STEPS

The issue can be reproduced at will with the following steps:

  1. Have several users to access the page with the portlets at the same time.
     
  2. After trying a few times, the behavior will occur.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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