[How to Fix Error compiling the iReport 3.7.3 java source]

 

import net.sf.jasperreports.engine.JRDefaultScriptlet;import net.sf.jasperreports.engine.JRScriptletException;

public class MyScriptlet extends JRDefaultScriptlet

Here are the errors I found in iReport console:

Error compiling the report java source! java.lang.UnsupportedClassVersionError: Bad version number in .class file

 

Below are some steps that I after searching the fix on the internet.

 

 1. Ensure JDK Compliance in Eclipse Luna is set to 1.6

 2. Add below jar in the java project:

commons-beanutils-1.8.2.jar     

commons-collections-3.2.1.jar    

commons-digester-1.7.jar     

commons-logging-1.1.jar    

jasperreports-3.7.3.jar     

jfreechart-1.0.12.jar    

jcommon-1.0.15.jar     

commons-javaflow-20060411.jar

 

I also tried to test adding a scriptlet using CustomBarcode Jar from the internet, and my iReport does not throws any errors.

 

Please help me fix this issue.