Jasper font show as jar that put in Library folder

error type below without jasper font jar :

search ::  ( how to install new fonts in jasperreports )
 http://www.qualogy.sr/adding-fonts-to-jasper-reports-integration/
http://stackoverflow.com/questions/14831465/how-to-install-new-fonts-in-jasperreports

Adding fonts to Jasper Reports Integration

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