Null Pointer exception when Hibernate Code generation

adil_tijani · **Joined:** Wed Mar 28, 2007 1:05 pm **Posts:** 3

Hi,
I m getting a Null pointer exception after running code generation.

I m using Eclipse 3.2 (object web lomboz) on Red Hat Entreprise Linux , and using Hibernate 3.2beta9.
I read hat this bug has been fixed in previous release.
any help
adil

Ananasi · **Posted:** Wed Mar 28, 2007 2:05 pm

How about a stack trace? Just saying you got an NPE is not all that informative.

adil_tijani · **Joined:** Wed Mar 28, 2007 1:05 pm **Posts:** 3

There was no stuck trace,
Problem resolved, problem with path for hibernate.cfg.xml
Thinks lot.

nikunj.prmr · **Posted:** Wed May 02, 2007 4:33 am

Dear i am also facing this type of problem , i u find any solution plz mail me,
I have pdf on hibernate if u want mail me on nikunj.prmr@gmail.com

nikunj.prmr · **Posted:** Tue May 13, 2008 1:11 pm

Hii All,

I want to save a object which has 9 child object 1 parent table with 9 child table . I use increment operator. when i save an object it give error message of duplicate key. if any great minded suggest me i am very thankful.....

Caused by: java.sql.BatchUpdateException: Duplicate key or integrity constraint violation message from server: "Duplicate entry '4' for key 1"
at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1540)
at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294)
at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58)
at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:195)
... 44 more

Sukirtha · **Posted:** Wed May 14, 2008 4:15 am

Post it in the hibernate users forum. This forum is only for tools related discussions. Also post the complete set of details like database used, the code that performs the update operation, the generated sql, the mapping files. I am sure people will be able to help you out better if you provided them with all the basic details. :)