I always use JasperReport for my java projects, but sometimes i found some weird java.lang.NoClassDefFoundError: org/codehaus/groovy/control/CompilationFailedException when im trying to get reports from jasper files. This is my full stack trace exception.

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/codehaus/groovy/control/CompilationFailedException
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
        at java.lang.Class.getConstructor0(Class.java:2699)
        at java.lang.Class.newInstance0(Class.java:326)
        at java.lang.Class.newInstance(Class.java:308)
        at net.sf.jasperreports.engine.JasperCompileManager.getCompiler(JasperCompileManager.java:472)
        at net.sf.jasperreports.engine.JasperCompileManager.loadEvaluator(JasperCompileManager.java:238)
        at net.sf.jasperreports.engine.fill.JRFillDataset.createCalculator(JRFillDataset.java:416)
        at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:408)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:74)
        at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:56)
        at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:143)
        at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:79)
        at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624)

Actually it happens because im still using Groovy as my report language, instead of Java. All i have to do is change reporting language to java, as you can see below.

Or adding groovy*.jar to your project’s classpath.

Have fun, cheers.