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Getting Oracle CLass Not Found Error on Blob Field

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Hello folks,

I am querying via JDBC an Oracle Database.  In the SQL I have a blob field I am querying.  By default Jasper Studio assigns the class="oracle.jdbc.OracleBlob" to the field.  When I try to compile the report  I get error that oracle.jdbc.OracleBlob class not found error.  I have tred using various Oracle JDBC Jar files (ojdbc6, ojdbc8 etc) in the classpath all with no effect..  Does anyone know how to deal with that problem?

the Error is java.lang.ClassNotFoundException: oracle.jdbc.OracleBlob cannot be found by net.sf..jasperreports_6.5.1.final.....


Thanks so much


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