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From "Robin Green" <>
Subject Re: XSP: Illegal Use Of Nonvirtual Function Call
Date Tue, 11 Apr 2000 18:12:10 GMT
"Bri Carey" <> wrote:

>Hello.  New to Cocoon.
>Apache JServ
>Cocoon 1.7.2
>I am trying to use the sample xsp files that came with Cocoon.  I moved 
>to our test directory, and pointed to page.xml in my browser.  I received
>the following error.
>In fact, I copied one of the samples from the Cocoon web site over to the
>directory and tried the same thing.  I copied the stylesheet as well.  I 
>the exact same error.
>java.lang.VerifyError: (class:
>org/apache/cocoon/processor/xsp/XSPProcessor$PageEntry, method: hasChanged
>signature: ()Z) Illegal use of nonvirtual function call
>              at
>org.apache.cocoon.processor.xsp.XSPProcessor.process(Compiled Code)
>              at org.apache.cocoon.Engine.handle(Compiled Code)
>              at org.apache.cocoon.Cocoon.service(Compiled Code)
>              at javax.servlet.http.HttpServlet.service(Compiled Code)
>              at org.apache.jserv.JServConnection.processRequest(Compiled
>              at Code)
>              at Code)
>Has anyone seen this before?

That's bizarre. My thoughts: Either:

a) your Cocoon download is corrupt (try downloading it again), or
b) you are using a buggy Java Runtime Environment, or
c) your version was compiled using a buggy compiler, or
d) you have been editing the Cocoon code and have made an incompatible 
change (in which case, do a build clean and then a build). Incompatible 
changes are usually, but not always, bugs (but that's a technical Java issue 
which we needn't go into here).

No-one else has reported this problem - which is a bytecode verification 
problem - so I can't see how it could be anything else.

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