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i keep getting this message in my tocat &nbsp;server.Im using the oreilly package to upload a file.<br />
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wat does this exception means<br />
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Exception<br />
javax.servlet.ServletExcep<wbr />tion: Error allocating a servlet instance<br />
<br />
root cause <br />
<br />
java.lang.ClassFormatError<wbr />: Incompatible magic value 1885430635 in class file uploadAction<br />
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<br />

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i keep getting this message in my tocat  server.Im using the oreilly package to upload a file.

wat does this exception means

Exception
javax.servlet.ServletException: Error allocating a servlet instance

root cause 

java.lang.ClassFormatError: Incompatible magic value 1885430635 in class file uploadAction




error?

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.