java.lang.ClassFormatError on Servlet

[Manohar Kamath <ma...@yahoo.com>]

Dear All,

I am finding a strange problem with a servlet.

No problem while compiling, but i am getting problem while calling the servlet

throws error :

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 
javax.servlet.ServletException: Cannot allocate servlet instance for path /servlet/MyServlet	at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:435)	at org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:180)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

root cause 
java.lang.ClassFormatError: MyServlet (Extra bytes at the end of the class file)	at java.lang.ClassLoader.defineClass0(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:509)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)

 

will anyone can help on this

 

thanks in advance,

Manohar Kamath

 



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RE: java.lang.ClassFormatError on Servlet

[James Lewis <ja...@goodtechnology.com>]

I believe this may be something to do with using a different class at
compile and run time.

E.g. When the class was compiled it used one version of a jar it depends on,
but when called as a servlet, the class it depends on is a different
version.

Check that Tomcat is using the same version as your compiler did.

James

Ps I may be entirely wrong about this.




> -----Original Message-----
> From: Manohar Kamath [mailto:manoharusas@yahoo.com]
> Sent: 08 April 2003 13:13
> To: tomcat-user@jakarta.apache.org
> Subject: java.lang.ClassFormatError on Servlet
>
>
>
> Dear All,
>
> I am finding a strange problem with a servlet.
>
> No problem while compiling, but i am getting problem while
> calling the servlet
>
> throws error :
>
> type Exception report
>
> message
>
> description The server encountered an internal error () that
> prevented it from fulfilling this request.
>
> exception
> javax.servlet.ServletException: Cannot allocate servlet instance
> for path /servlet/MyServlet	at
> org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerSe
> rvlet.java:435)	at
> org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.j
> ava:180)	at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>
> root cause
> java.lang.ClassFormatError: MyServlet (Extra bytes at the end of
> the class file)	at
> java.lang.ClassLoader.defineClass0(Native Method)	at
> java.lang.ClassLoader.defineClass(ClassLoader.java:509)	at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
>
>
>
> will anyone can help on this
>
>
>
> thanks in advance,
>
> Manohar Kamath
>
>
>
>
>
> ---------------------------------
> Do you Yahoo!?
> Yahoo! Tax Center - File online, calculators, forms, and more


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