Getting a java.lang.NoClassDefFoundError while executing my projects

Question

I am new to this office where I am doing my internship. They work with java web based frameworks like spring etc. As I was trying to set up my work-space I had to check out all their projects from the CVS repositories. Now when I try to execute it throws some exceptions:

The exceptions are listed below:

Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JRException
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2585)
    at java.lang.Class.getDeclaredConstructors(Class.java:1906)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:227)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:930)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:903)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
    at com.scraper.AgentLauncher.getDynamicContext(AgentLauncher.java:277)
    at com.scraper.AgentLauncher.main(AgentLauncher.java:652)
    at com.highradius.util.AgentLauncherTest.main(AgentLauncherTest.java:22)
Caused by: java.lang.ClassNotFoundException: neet.sf.jasperreports.engine.JRException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

The exceptions are also given in the below screenshot:

https://i.stack.imgur.com/TiD3s.png

I had very similar issue with terracota. You need to check if there no two version of the same class in classpath. Sometimes the same class can be included in librarry — Oleksandr Samsonov, Aug 23 '17 at 08:46
Class JRException is not getting referred in your case..cross check your jars — Akshay, Aug 23 '17 at 08:48
are you using Maven for build? so can you please post the Maven build file? — Michael Meyer, Aug 23 '17 at 09:17
@MichaelMeyer Yes I am using Maven for building. My work-space has more than 10 projects. Each of them have their own pom.xml file i.e their own maven build file . Which one do you want me to post ? Please help. — DockYard, Aug 23 '17 at 10:24

score 1 · Answer 1 · answered Aug 23 '17 at 08:55

1

It's clearly indicates

Caused by: java.lang.ClassNotFoundException: neet.sf.jasperreports.engine.JRException

Just check once about this class in your classpath. Jar might be missing for it.

answered Aug 23 '17 at 08:55

nagendra547

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By what name should I search for the jar ? I mean I already have a few jars named similar to jasperreports. Please help. – DockYard Aug 23 '17 at 09:06
This link might help you to find the required jar. https://stackoverflow.com/questions/1342894/find-a-class-somewhere-inside-dozens-of-jar-files – nagendra547 Aug 23 '17 at 09:07
Do a little check : Create a project in java eclipse , add all the jars that you are referencing ( i am assuming it is not more than 100) into the eclipse project. Press Ctrl+shift+T and then look for the neet.sf.jasperreports.engine.JRException If you don't find any result it means you don't have jar there. If there are multiple result , you may want to remove some of the conflicting jars – Geek Aug 23 '17 at 15:48

Getting a java.lang.NoClassDefFoundError while executing my projects

1 Answers1