Problem with ChartTool IReport: ClassCastException

[Rags]

Hi,

I am working with IReport 1.2.5, I donot have any problem when generating simple reports. I am not able to generate reports using Chart Tool.

I am using Oracle 10g, I have connected to Oracle 10g from IReport through "oracle.jdbc.driver.OracleDriver"

I have given one query, which retrives two fields ( one is Varchar2 and another one is Number of Oracle table) and I want to Plot these two fields throgh YX Bar of IReport.

When I draw this YX Bar and execute the report, getting ClassCast Exception.

IReport internally converting Number field of oracle into java.math.BigDecimal

How to plot YX Bar or any other Chart Tool in IReport?

 

Thanks in Advance!

Rags