Instead of immediately injecting the file into the build server, Elias spun up a local sandbox. He moved the downloaded jasperreports-6.3.0.jar into a pristine directory.
Compare output to c887cbd2d3a0ffc312ba64efb8afad15db45ab1a . jasperreports-6.3.0.jar download
(if you use build tools)
Direct download: https://repo1.maven.org/maven2/net/sf/jasperreports/jasperreports/6.3.0/jasperreports-6.3.0.jar Instead of immediately injecting the file into the
EverythingMoe
