help needed

[Gan Keng Hoon <kh...@cs.usm.my>]

hi team,

         i started developing a web-based email system few weeks back.
everything was just fine untill someday last week, this error began to
happen on some of the links. The links point to some jsp files which run
well before. And they were not modified at all when the error happened.

Error: 500
Location: /emailcentre/reply.jsp
Internal Servlet Error:
null
nullorg.apache.jasper.JasperException: Unable to compile class for
JSPnull at
org.apache.jasper.runtime.JspServlet.loadJSP(JspServlet.java:425)null at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:149)null
at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:161)null
at
org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)null
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java,
Compiled Code)null at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)null at
org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java,
Compiled Code)null at
org.apache.tomcat.core.ContextManager.service(ContextManager.java,
Compiled Code)null at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java,
Compiled Code)null at
org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java,
Compiled Code)null at java.lang.Thread.run(Thread.java, Compiled
Code)null
nullRoot cause:null
nulljava.lang.NullPointerExceptionnull at
java.io.Win32FileSystem.normalize(Win32FileSystem.java, Compiled
Code)null at
java.io.Win32FileSystem.getUserPath(Win32FileSystem.java:263)null at
java.io.Win32FileSystem.resolve(Win32FileSystem.java, Compiled Code)null
at java.io.File.getAbsolutePath(File.java:397)null at
org.apache.jasper.compiler.JspReader.pushFile(JspReader.java, Compiled
Code)null at
org.apache.jasper.compiler.JspReader.pushFile(JspReader.java:125)null at
org.apache.jasper.compiler.JspReader.(JspReader.java:219)null at
org.apache.jasper.compiler.JspReader.createJspReader(JspReader.java:225)null
at org.apache.jasper.compiler.Compiler.compile(Compiler.java, Compiled
Code)null at
org.apache.jasper.runtime.JspServlet.loadJSP(JspServlet.java:413)null at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:149)null
at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java:161)null
at
org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:261)null
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java,
Compiled Code)null at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)null at
org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java,
Compiled Code)null at
org.apache.tomcat.core.ContextManager.service(ContextManager.java,
Compiled Code)null at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java,
Compiled Code)null at
org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java,
Compiled Code)null at java.lang.Thread.run(Thread.java, Compiled
Code)null
null


yours
gan