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ClassCastException Weblogic and Oracle CLOB object

 
Parameswaran Thangavel
Ranch Hand
Posts: 485
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All,
My web application uses Weblogic connection pool for database activities.
I am using Oracle database.


I have a jar file / class file which has the following piece of code, which my application uses.


Please remember i can't modify the above line of code.

When i am running the application i am getting the below error...



It seems like weblogic returns the object 'weblogic.jdbc.wrapper.Clob_oracle_sql_CLOB', rather than the 'oracle.sql.CLOB' which i am expecting.

Is there any way i can force the weblogic to return the object i am expecting,
since i can't modify the above piece of code, in which case, i can cast it to 'weblogic.jdbc.wrapper.Clob_oracle_sql_CLOB'.

Any help would be appreciated....
 
Dieter Hubau
Greenhorn
Posts: 2
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At the risk of being redundant, I can finally answer this one :-)

Weblogic wraps all special data types like LOB, CLOBs, etc.. in wrapper classes before returning them. Weblogic does this by default.

You can turn this option off as explained in below article:

http://adfpractice-fedor.blogspot.com/2011/09/weblogic-wrapping-data-types.html
 
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