You can sort of tell given his output:
*PROFILE null*
Exception in thread "main" java.lang.NullPointerException
at Main.main(Main.java:23)
So given that:
21. ...
22. System.out.println(*"PROFILE " + profile*);
23. System.out.println(profile.getName());
24. ...
We take NPE very seriously, and consider any NPE thrown by iBATIS to be a
but. This however, is not being thrown by iBATIS. There is simply no
profile object returned, and he's calling getName() against a null
reference.
Clinton
On Wed, Dec 30, 2009 at 10:38 PM, Guy Rouillier <[email protected]>wrote:
> On 12/30/2009 12:28 AM, vishalj wrote:
>
>>
>> Hi,
>> I am using iBatis for the first time ,but no success yet.This is how my
>> setup looks like
>>
> ...
>
> String resource = "com/pg/ibatis/config/Configuration.xml";
>> Reader reader = Resources.getResourceAsReader(resource);
>> SqlSessionFactory factory = new SqlSessionFactoryBuilder()
>> .build(reader);
>> SqlSession session = factory.openSession();
>> try {
>> UserProfileMapper mapper =
>> session.getMapper(UserProfileMapper.class);
>> UserProfile profile = mapper.selectUserProfile(1);
>> System.out.println("PROFILE " + profile);
>> System.out.println(profile.getName());
>> } finally {
>> session.close();
>> }
>>
>> But i am getting NPE
>> PROFILE null
>> Exception in thread "main" java.lang.NullPointerException
>> at Main.main(Main.java:23)
>>
>
> Well, put in a catch clause and print a stack trace. Hard to tell where
> the error is occurring, since you are not showing complete source, so we
> have no idea where line 23 is.
>
> Though the execution is printing out your first System.out, I'm guessing
> the error is much earlier. My guess would be that it can't find your
> Configuration.xml file. Are your running within an IDE? Debug and single
> step through to make sure that the factory, session and mapper objects are
> all getting created successfully.
>
> --
> Guy Rouillier
>
>
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