I make some reports on ireport with using java on backend but I have some issues with this problem. I finished the template of the report and also I made the backend part of the project but when I wanted to make preview of the report on I report I got this error message. Report can be compiled but there are some problem I guess. I need some help. Thanks in advance....
The error message is:
Setting net.sf.jasperreports.engine.query.JRJdbcQueryExecuterFactory as Query Executer Factory for language: sql Filling report... Locale: Türkçe (Türkiye) Time zone: Default Error filling print... Error evaluating expression : Source text : new net.sf.jasperreports.engine.JREmptyDataSource($R{exam_result_data_collection}) java.lang.NoSuchMethodException: net.sf.jasperreports.engine.JREmptyDataSource.(java.lang.String) at java.lang.Class.getConstructor0(Class.java:2902) at java.lang.Class.getConstructor(Class.java:1731) at com.jaspersoft.ireport.designer.compiler.prompt.Prompter$1.run(Prompter.java:278) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:302) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:745) at java.awt.EventQueue.access$300(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:706) at java.awt.EventQueue$3.run(EventQueue.java:704) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:715) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression : Source text : new net.sf.jasperreports.engine.JREmptyDataSource($R{exam_result_data_collection}) at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:263) at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:611) at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:579) at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:1016) at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateSubreport(JRFillSubreport.java:405) at net.sf.jasperreports.components.table.fill.FillTableSubreport.evaluateSubreport(FillTableSubreport.java:92) at net.sf.jasperreports.components.table.fill.FillTable.evaluate(FillTable.java:118) at net.sf.jasperreports.engine.fill.JRFillComponentElement.evaluate(JRFillComponentElement.java:110) at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:259) at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:456) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2067) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:788) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:298) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:152) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:963) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:892) at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:114) at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:584) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:930) at com.jaspersoft.ireport.designer.compiler.IReportCompiler.run(IReportCompiler.java:928) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) Caused by: org.codehaus.groovy.runtime.metaclass.MethodSelectionException: Could not find which method (null) to invoke from this list: public net.sf.jasperreports.engine.JREmptyDataSource#() public net.sf.jasperreports.engine.JREmptyDataSource#(int) at groovy.lang.MetaClassImpl.chooseMethodInternal(MetaClassImpl.java:2867) at groovy.lang.MetaClassImpl.chooseMethod(MetaClassImpl.java:2802) at groovy.lang.MetaClassImpl.createConstructorSite(MetaClassImpl.java:3048) at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallConstructorSite(CallSiteArray.java:88) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:57) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190) at ExamResultReport_1644319362705_183147.evaluate(calculator_ExamResultReport_1644319362705_183147:262) at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:250) ... 21 more Print not filled. Try to use an EmptyDataSource...
