Note: JasperReports is something entirely different than the JSP compiler included with Tomcat, although they both have the name "Jasper".
It's also entirely different from
Jasper - ZX Spectrum Emulator - allows Java enabled browsers to run ZX Spectrum games
Jasper - Java Class File Disassembler
JASPER (Java Simulation of Protocols for Education and Research)
and
Jasper - a COM object that is able to read and execute code from existing Java classes and expose the classes as COM objects.
And those are just from the first page of googling 'java jasper'.
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