luo hanmei wrote:

> Hi,
>
> I have post this message before, but I am afraid I did not explain the
> problem clearly, so here I am again :-<
>
> I have used another java archive, vtk.jar to write the servlet, but
> failled to get the "500 Internal Server Error". The log file is:
>
> java.lang.NoClassDefFoundError: vtk/vtkPanel
>         at org.apache.jserv.JServConnection.processRequest(JServConnection.java)
>         at org.apache.jserv.JServConnection.run(JServConnection.java)
>         at java.lang.Thread.run(Thread.java:479)
>

NoClassDefError means that some class referred to by your vtkPanel class, rather
than vtkPanel itself, cannot be found.  Look at the source code of your class and
see what it refers to that is not included in the classpath.

>
> The problem is that I have put wrapper.classpath=c:\luo\vtk.jar in the
> jser.properties file. I am really confused why I still get
> java.lang.NoClassDefFoundError: vtk/vtkPanel error message.
>
> Your advice is greatly appreaciated!
>
> Hanmei
>

Craig McClanahan

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