[wedage]

I am trying to integrate the jasper report into the NetBeans 5.5.1 .As the article mentioned I added all the following six classes.

JasperReports-1.2.5
commons-beanutils-1.5.jar
commons-collections-2.1.jar
commons-digester-1.7.jar
commons-logging-1.0.2.jar
commons-javaflow-20060411.jar

Compiling step is OK. But when I tried to run the application following message would come.

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/digester/Digester
at net.sf.jasperreports.engine.JasperCompileManager.c ompileReport(JasperCompileManager.java:151) at Main.main(Main.java:45)

When I do this in JBuilder and the command prompt the same message appeared.
What is this problem and how to solve this?
Help me

Thank you,