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NullPointerException

saikrishna cinux
Ranch Hand

Joined: Apr 16, 2005
Posts: 689
here i am getting nullPointerException
I've checked everything but i am not able solve the problem




please help me....


the source code is in this link

www.myjavaserver.com/~cinux/mahesh


A = HARDWORK B = LUCK/FATE If C=(A+B) then C=SUCCESSFUL IN LIFE else C=FAILURE IN LIFE
SCJP 1.4
Onkar Shendge
Greenhorn

Joined: May 29, 2002
Posts: 11
Please share the stacktrace.


- Onkar
saikrishna cinux
Ranch Hand

Joined: Apr 16, 2005
Posts: 689
java.lang.NullPointerException
at org.apache.jsp.GreBluePrint$jsp._jspService(GreBluePrint$jsp.java:134)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
at java.lang.Thread.run(Thread.java:536)
David O'Meara
Rancher

Joined: Mar 06, 2001
Posts: 13459

This is one of the main reasons scripts went out of style, they are difficult to maintain and just as hard to debug. Try either using system.out or logger messages to see how far the execution gets and try to narrow down where the exception is being thrown.
Ben Souther
Sheriff

Joined: Dec 11, 2004
Posts: 13410


at org.apache.jsp.GreBluePrint$jsp._jspService(GreBluePrint$jsp.java:134)


You may also want to look at line 134 in:
tomcat/work/Catalina/localhost/{your context name}/org/apache.GreBluePrint$jsp.java

This is your JSP's generated servlet code.


Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf
 
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subject: NullPointerException