[Q] java.lang.AbstractMethodError

[·ùÁ¤¿ì(Jung-Woo Ryoo) <jwryoo@kr.oracle.com>]

 Hello..

I meet an error when I installed the GNUJSP and ran a test JSP file.

###
Exception while servicing request for /hello.jsp:

java.lang.AbstractMethodError: org/apache/jserv/JServContext.getResource
	at org.gjt.jsp.JspServlet$Page.getResourceImpl(JspServlet.java:684)
	at org.gjt.jsp.JspServlet$Page.needToRecompile(JspServlet.java,
Compiled Code)
	at org.gjt.jsp.JspServlet$Page.process(JspServlet.java, Compiled Code)
	at org.gjt.jsp.JspServlet.service(JspServlet.java:284)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
	at
org.apache.jserv.JServConnection.processRequest(JServConnection.java)
	at org.apache.jserv.JServConnection.run(JServConnection.java)
	at java.lang.Thread.run(Thread.java:479)
###

How can I remove this error?
Please reply..

Regards..
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