Hola Emilio,
Yo también hace tiempo que no puede levantar el iReport, me dice:
lleonardis@lleonardis-H81M-H:~/Downloads/iReport-5.6.0/bin$ ./ireport
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.netbeans.ProxyURLStreamHandlerFactory (file:/home/lleonardis/Downloads/iReport-5.6.0/platform9/lib/boot.jar) to method java.net.URL.getURLStreamHandler(java.lang.String)
WARNING: Please consider reporting this to the maintainers of org.netbeans.ProxyURLStreamHandlerFactory
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Pero estoy usando el plugin de Netbeans en lugar de iReport:
https://www.youtube.com/watch?v=RMLJ1aYOPMs
https://sourceforge.net/projects/ireport/files/iReport%20Plugin%20for%20NetBeans/
https://sourceforge.net/projects/ireport/files/iReport%20Plugin%20for%20NetBeans/iReport-5.6.0/
Te dejo captura de como se ve!!!
Si no queres usar el plugin de Netbeans vas a tener que ver el tema de la versión de Java, para cambiar la version de Java podes ver este hilo.
saludos.
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