Daniel02

I solved it, it looks like version compatibility issue since in my project libraries i included the "jasperreports-5.6.0.jar" (which was missing this class: "ReportExpressionEvaluationData.class") though i was using Jaspersoft studio 6.20.6 to design the report, so i managed to find the correct "jasperreports-6.20.6.jar" file which contained the previously missing class and included it in my libraries instead of the other one. Thanks !

Hello Jaspersoft! I'm having the same issue while running my Java program to generate a report, i tried to use iReport to build the report but i faced some issues, so i used Jaspersoft Studio-6.20.6, but when i try to run it from my java application, i get this error (this is the full error log , in case it is helpful) : "C:\Program Files\Java\jdk-20\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.3.1\lib\idea_rt.jar=60793:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2022.3.1\bin" -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath "C:\Users\Daniel\NetBeansProjects\MavenJavaProject1\target\classes;C:\Users\Daniel\Java JAR Files\mysql-connector-java-8.0.17\mysql-connector-java-8.0.17.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\commons-beanutils-1.8.2.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\commons-collections-3.2.1.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\commons-digester-2.1.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\commons-javaflow-20060411.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\commons-logging-1.1.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\groovy-all-2.0.1.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\iText-2.1.7.js2.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\jasperreports-5.6.0.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\jfreechart-1.0.12.jar;C:\Users\Daniel\Java JAR Files\Jasper Jar\poi-3.7-20101029.jar" javaPos.Home net.sf.jasperreports.engine.JRException: Class not found when loading object from file : src\main\java\reports\FirstReport.jasper at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:135) at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:103) at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:283) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:760) at javaPos.ReportView.<init>(ReportView.java:50) at javaPos.ReportView.<init>(ReportView.java:31) at javaPos.reports.allSalesBtnActionPerformed(reports.java:135) at javaPos.reports$3.actionPerformed(reports.java:61) at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972) at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2314) at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:407) at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262) at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6620) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3398) at java.desktop/java.awt.Component.processEvent(Component.java:6385) at java.desktop/java.awt.Container.processEvent(Container.java:2266) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4995) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4827) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4827) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:775) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714) at java.base/java.security.AccessController.doPrivileged(AccessController.java:400) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745) at java.base/java.security.AccessController.doPrivileged(AccessController.java:400) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) Caused by: java.lang.ClassNotFoundException: net.sf.jasperreports.compilers.ReportExpressionEvaluationData at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:496) at java.base/java.lang.Class.forName(Class.java:475) at java.base/java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:802) at net.sf.jasperreports.engine.util.ContextClassLoaderObjectInputStream.resolveClass(ContextClassLoaderObjectInputStream.java:98) at java.base/java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:2059) at java.base/java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1925) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2248) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1760) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:538) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:496) at java.base/java.util.HashMap.readObject(HashMap.java:1560) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:578) at java.base/java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1100) at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2440) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2280) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1760) at java.base/java.io.ObjectInputStream$FieldValues.<init>(ObjectInputStream.java:2614) at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2465) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2280) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1760) at java.base/java.io.ObjectInputStream$FieldValues.<init>(ObjectInputStream.java:2614) at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2465) at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2280) at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1760) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:538) at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:496) at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:127) ... 42 more Thanks! And my apologies in advance , in case i'm not following all the procedures that might relate to the posing of issues.