problems with DateTime functions

[oiballab]

I can compile and see my report in Jasper Studio , but when I try it i a Java progran I get this merror message

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
F:DocumentsNetBeansProjectsGestioneAsiloNuovoMensile_A4_1591202921891_7717.java:239: error: cannot find symbol
                value = YEAR(TODAY()); //$JR_EXPR_ID=16$
                             ^
  symbol:   method TODAY()
  location: class Mensile_A4_1591202921891_7717
F:DocumentsNetBeansProjectsGestioneAsiloNuovoMensile_A4_1591202921891_7717.java:372: error: cannot find symbol
                value = YEAR(TODAY()); //$JR_EXPR_ID=16$
                             ^
  symbol:   method TODAY()
  location: class Mensile_A4_1591202921891_7717
F:DocumentsNetBeansProjectsGestioneAsiloNuovoMensile_A4_1591202921891_7717.java:505: error: cannot find symbol
                value = YEAR(TODAY()); //$JR_EXPR_ID=16$
                             ^
  symbol:   method TODAY()
  location: class Mensile_A4_1591202921891_7717
3 errors

How can I solve it?

Thanks