Get ClassCastException when generating report with Struts2

[Akshay Jadhav]

 

I put *.jasper* file in my web content folder of my project and in my action class there is only execute method and my *struts.xml* has following code:

 

<!-- language: lang-xml -->

 

    <action name="myJasperTest" class="com.acme.test.action.JasperAction">

    <result name="success" type="jasper">

    <param name="location">/our_jasper_template.jasper</param>

    <param name="dataSource">myList</param>

    <param name="reportParameters">reportParams</param>

    <param name="format">PDF</param>

    </result>

    <result name="error">/Error.jsp</result>

    </action>

 

 

And while running this program it gives me error: 

 

    java.lang.ClassCastException: cannot assign instance of

    net.sf.jasperreports.engine.base.JRBaseStyle to field

    net.sf.jasperreports.engine.base.JRBaseParagraph.paragraphContainer of type

    net.sf.jasperreports.engine.JRParagraphContainer in instance of

    net.sf.jasperreports.engine.base.JRBaseParagraph

 

Can anybody help me how to resolve this problem?

[Akshay Jadhav]

This error occur due to improper jars in projects lib folder.

[AhmadNasrElKaffas]

The Jar files in the projects lib folder should be matching the version of iReport

I had the same problem and it has been solved by using correct jar files.

you can take a look at the link below:

http://sourceforge.net/projects/jasperreports/files/jasperreports/