Posted on 2013-01-07
Last Modified: 2013-01-17
Hi All,

Please advise on what we should do to prevent the following exception.

- MKOCO95200M42Q0 : a different object with the same identifier value was already associated with the session: web.enrollment.bean.organization.EnrollmentAccomodationsBean#308: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: web.enrollment.bean.organization.EnrollmentAccomodationsBean#308
Question by:somaghoshCU
1 Comment
LVL 10

Accepted Solution

ivanovn earned 300 total points
ID: 38764767
The Java objects and Hibernate objects are handled differently. In this case, you have opened a hibernate session and associated an object to that identifier. So when you try to merge in a new java object within the same hibernate session, that identifier is already used in hibernate cache and you get that exception.

What you should do is either complete the merge of the initial object and close or clear the session, or evict the hibernate object from the cache before reusing the identifier.

Chapter 11 of the documentation contains most of the information you need:

For the rest of the documentation see:

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
return in catch statement 1 44
Modeling a class in java 5 49
Which is the latest version of Apache Tomcatl 3 50
stackato and cloud 4 74
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
The viewer will learn how to implement Singleton Design Pattern in Java.
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.

867 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now