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The owc_discussions URL Returns Error: java.lang.ClassCastException: com.thoughtworks.xstream.converters.extended.LocaleConverter cannot be cast to com.thoughtworks.xstream.converters.Converter (Doc ID 2820881.1)

Last updated on NOVEMBER 15, 2021

Applies to:

Oracle WebCenter Portal - Version 12.2.1.4.210608 to 12.2.1.4.210830
Information in this document applies to any platform.

Symptoms

The owc_discussions URL stops Working after applying the WebCenter Portal Bundle Patch 12.2.1.4.210608 (Patch 33010608). 
The following URL is not accessible:

http://<HOST>:<PORT>/owc_discussions/index.jspa

 

ERROR

The following error was observed in the logs of WC_Collabortation server:

java.lang.ClassCastException: com.thoughtworks.xstream.converters.extended.LocaleConverter cannot be cast to com.thoughtworks.xstream.converters.Converter
    at com.thoughtworks.xstream.core.DefaultConverterLookup.lookupConverterForType(DefaultConverterLookup.java:73)
    at com.thoughtworks.xstream.XStream$1.lookupConverterForType(XStream.java:483)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:56)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
    at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
...

 
After rolling back the patch, the error no longer occurs.

STEPS 

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

  1. Apply the WebCenter Portal Bundle Patch 12.2.1.4.210608 (Patch 33010608).
     
  2. Start the WC_Collaboration managed server.
     
  3. Try accessing this URL:
     
    http://<HOST>:<PORT>/owc_discussions/index.jspa
     
    The URL doesn't work. 

  4. Revert Patch 33010608.
     
  5. Try accessing this URL:
     
    http://<HOST>:<PORT>/owc_discussions/index.jspa

    The URL works now.

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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