Class not found when loading

[steccov]

Hi,

when i try to load a jasper report after the Tomcat (version 4.0) deploy apperars this error:

 

"javax.servlet.ServletException: Class not found when opening object from file : filepath"

 

I have used jasper report 1.2.7 and my web app is developed on jbuilder.

 

Therefore when i printed the stack of the error "org.apache.commons.collections.sequencedhashmap".

 

Can anyone halp me, please.

 

Andrea

 

Post edited by: steccov, at: 2006/10/17 15:56

Post edited by: steccov, at: 2006/10/17 16:11

[jacky]

it seems your classpath is lack of some jars

[amir.ghaffarigc.com.pk]

Have similar problem:

net.sf.jasperreports.engine.JRException: Class not found when loading object from file : C:jboss-4serverdefault.tmpdeploytmp51495voipaudit-exp.warreportsassetPluginCoverageMain.jasper

 

Tried to migrate from JR1.0.0 to 1.2.7

With 1.0.0 works fine, when replaced jars - got error!

Ant compiles reports before deploing well, deploing to JBoss4. Error occured in runtime, when doind export to PDF.

...

String s = servletContext.getRealPath(MY_REPORT);

jReport = (JasperReport) JRLoader.loadObject(s);

...

JRLoader.loadObject(s) - throws exception

 

Any ideas?

 

Post edited by: Amir, at: 2006/10/19 19:25

Post edited by: Amir, at: 2006/10/19 19:33

[Teodor Danciu]

Hi,

 

When upgrading, pay attention to the "Requirements" page in our documentation. They might have changed in the meantime.

http://jasperforge.org/sf/wiki/do/viewPage/projects.jasperreports/wiki/Requirements

 

I hope this helps.

Teodor