How to invoke a general class in JSP?

Hi
I'm trying to invoke a general class called "Product" in my JSP. I put the Product.class file in the same directory with my JSP. But when I run the JSP, the error message said the Product class can not be compiled.
What's the problem?
Please help!!Thanx.
Chong

put it in the directory WEB-INF/classes

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