I would check exactly where the NPE is happenning. According to your
code and stck trace it happens here:
public String listDomain(Integer dt_oid)
{
String result= SUCCESS;
try {
domList=DomainDAO.listDomain(dt_oid);
System.out.println("Listing domain");
return result;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
result=null;
return result;
}
}
But since DomainDao.listDomain is static, there is nothing here that
would launch the NPE. I suggest to put some traces in the code the
follow it and see what's happening. But this has nothing to do with
Struts at all.
-----Original Message-----
From: JavaNoobie [mailto:vivek...@enzentech.com]
Sent: Friday, March 11, 2011 7:12 AM
To: user@struts.apache.org
Subject: Re: Code Help:CRUD example
The Jsp file to the same is as follows.
http://old.nabble.com/file/p31124495/newjsp.txt newjsp.txt
JavaNoobie wrote:
>
> Hi All,
> This is in following to my previous message .
> I have developed a small CRUD example using struts 2 . But when I try
> to run the same it throws an error (Null pointer exception).. The
> exception stack trace is as follows.
> Inside AddDomain
> java.lang.NullPointerException
> at
>
com.vivek.struts2.action.DomainAction1.listDomain(DomainAction1.java:92)
> at
>
com.vivek.struts2.action.DomainAction1.addupDomain(DomainAction1.java:81
)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at
>
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActi
onInvocation.java:404)....
>
> Could anyone please guide me as to where Im going wrong . Im attaching
> the source code of my action , dao class , xml files ad jsp here
.Please help.
> http://old.nabble.com/file/p31124479/DomainAction1.txt
> DomainAction1.txt http://old.nabble.com/file/p31124479/DomainDAO.txt
> DomainDAO.txt http://old.nabble.com/file/p31124479/strutsxml.txt
> strutsxml.txt
>
>
--
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