How to import custom package in JSP

Hi! everyone,
I wrote a jsp file that imports some custom packages in a jar file. I've put that jar file in the classpath, the WEB-INF/classes directory, the orion directory etc...But I kept getting the "Package doesn't exist" compiling error in the borowser. Would you please help and tell me what I'm missing here?

Thank you for your reply. I tried but it didn't work. Can you give me more hint on what to do?
Placing the jar file in the /WEB-INF/lib directory
should fix the problem.

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