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Odd NullPointerException

subhashchandra medhiassam
Ranch Hand

Joined: Sep 10, 2008
Posts: 72
Dear friends,
I have run into a problem and need your help in solving it.

I am trying to map the values of the fields of an object into a relational database table.

The file hibernate.cfg.xml looks like the following :



The POJO class named ContactDetails.java looks like the following :




And the class used to set the values into the POJO is named as FirstExample.java. It looks like the following:


But when i execute FirstExample.java, i am getting a NulPointerException corresponding to the statement session.flush(); which is in the finally block.
What should i do now ? Kindly help me out.


Subhash
Paul Sturrock
Bartender

Joined: Apr 14, 2004
Posts: 10336

So most likely your session is not created in the first place. Have a look at your logs, there should be another error message in there.


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subhashchandra medhiassam
Ranch Hand

Joined: Sep 10, 2008
Posts: 72
Hi,
I have sorted out the problem. I had not included some of the jars. Thanks for the help anyway.

Subhash
Lei Guoguo
Greenhorn

Joined: Mar 31, 2009
Posts: 26
subhashchandra medhiassam wrote:Dear friends,


But when i execute FirstExample.java, i am getting a NulPointerException corresponding to the statement session.flush(); which is in the finally block.
What should i do now ? Kindly help me out.


Subhash


you can try in this way:

......
finally {
if(session != null) {
session.flush();
session.close();
session = null;
}
}


I'm a chinese, my english is so bad, I need help. If you want to help me, you can send your question to my e-mail: lgg860911@yahoo.com.cn, I will help you, and improve my english. Thanks everyone.
 
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subject: Odd NullPointerException