Why Java doesn't recognize net.sf.jasperreports.engine.util.JRLoader class?

Question

Good afternoon. I am working on JDK 1.6.

I am trying to integrate JasperReports to the Java Web Application of company where I work. First, I created an simple Java Application for to test the reports generation, and I used the next libraries (jars):

Commons collections 3.2.1
Commons beanutils 1.9.0
Commons digester 2.1
Commons logging 1.2
Groovy all 1.8.0
Joda time 2.0
JasperReports 6.0.0

With these I was able to create a report but, when I transfered this libraries to the Java Web Application,happened the next exception:

javax.faces.FacesException: #{bean.functionCalled}: java.lang.reflect.InvocationTargetException
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
    at org.primefaces.application.CleanupActionListener.processAction(CleanupActionListener.java:42)
    ...
Caused by: javax.faces.el.EvaluationException: java.lang.reflect.InvocationTargetException
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102)
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
    ... 51 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    ... 52 more
Caused by: java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/util/JRLoader
    ... 85 more
Caused by: java.lang.ClassNotFoundException: net.sf.jasperreports.engine.util.JRLoader
    at java.net.URLClassLoader$1.run(Unknown Source)
    ...
    ... 86 more

I found out that the cause of the problem is the commons loggin version, or the libraries combination. By default, this Java Web Application has the next libraries:

Commons collections 3.2
Commons beanutils 1.6
Commons digester 1.8.1
Commons logging 1.1.1
Groovy all 1.5.4
Joda time 1.6

I'm making differents versions combinations but not working, the problem persist.

What you recommend me?

Thank you so much.

Anshul Sharma Anshul Sharma · Accepted Answer · 2017-07-04T16:30:07

This is a missing jars in the class path issue.

I had this issue and found that with by adding the missing jars to the class path it resolved the issue.

From the below article java.dzone.com article here I found that the minimal jars necessary are...Now The versions numbers have changed but with these libraries only I managed to get it working.

jasperreports-3.5.3.jar and above version
commons-digester-2.1.jar
commons-collections-3.2.jar (commons-collections.jar)
commons-logging-1.2.jar
commons-beanutils.jar
iText-5.0.jar (used infor PDF exporting)

Why Java doesn't recognize net.sf.jasperreports.engine.util.JRLoader class?

1 Answers