Hi all, I`m using Jasper Reports for creating printouts in my Spring Boot application. I`m dispalying my persist entity in the report. One of the field is @DateTimeFormat(iso = ISO.DATE)private LocalDate documentDate;[/code]I`m displaying this date just simple <field name="myEntity.documentDate" class="java.lang.String"/>[/code]<textFieldExpression><![CDATA[$F{myEntity.documentDate}]]></textFieldExpression>[/code]this works FINE. Now I`d like to show week number from this date. So, in Jasper XML I created variable like this <variable name="week_no" class="java.lang.Integer"> <variableExpression><![CDATA[WEEKNUM($F{myEntity.documentDate})]]></variableExpression></variable>[/code]<textFieldExpression><![CDATA[$V{week_no}]]></textFieldExpression>[/code]I`m getting net.sf.jasperreports.engine.JRRuntimeException: Function WEEKNUM not found How to get week number in my case?
