Jasper Report - local class incompatible

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cc - 25 Oct 2005 13:24 GMT

Hi,
I have a problem with Jasper Report.

I have written a report with IReport and I have integrated it in my web
project.
My report uses a xml data source.

When I execute my program,it show this exception:
java.io.InvalidClassException:
net.sf.jasperreports.engine.base.JRBaseReport; local class incompatible:
stream classdesc serialVersionUID = 601, local class serialVersionUID =
10001

You can help my?
I use:
JBuilder 2005
Tomcat 5.0,
j2se 1.4.2

Thank and sorry for my english,
Carlo

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Ingo R. Homann - 25 Oct 2005 13:30 GMT

Hi,

> When I execute my program,it show this exception:
> java.io.InvalidClassException:
> net.sf.jasperreports.engine.base.JRBaseReport; local class incompatible:
> stream classdesc serialVersionUID = 601, local class serialVersionUID =
> 10001

Sounds to me as if a complete clean/rebuild should help.

Ciao,
Ingo

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cc - 25 Oct 2005 13:52 GMT

> Hi,
>
[quoted text clipped - 5 lines]
>
> Sounds to me as if a complete clean/rebuild should help.

I not understand.
I have clean and rebuild, the problem exist.

> Ciao,
> Ingo

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Roedy Green - 25 Oct 2005 14:07 GMT

>java.io.InvalidClassException:

see
http://mindprod.com/jgloss/runerrormessages.html#INVALIDCLASS

You have stale *.ser serialialised object file. It needs to be
regenerated. Exactly what that is, can't tell you. Perhaps with a
stack trace or filemon you could figure out which file is stale.

See http://mindprod.com/jgloss/filemon.html

Signature

Canadian Mind Products, Roedy Green.
http://mindprod.com Again taking new Java programming contracts.

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puzz... - 25 Oct 2005 17:45 GMT

> Hi,
> I have a problem with Jasper Report.
[quoted text clipped - 8 lines]
> stream classdesc serialVersionUID = 601, local class serialVersionUID =
> 10001

Are you sure that JasperReport version on tomcat is *exactly* the same as
the one used with iReport (in the lib/ folder)?

--
www.puzz.info

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Jasper Report - local class incompatible

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