Merge not happening, new item is added instead in the database

[Insano]

Hi,

I have created a Roo application using the reverse engineering feature and I am having the following problem:

Object fails to get updated, instead I see a new record added in the database.

I am using the following:

• Spring Roo 1.1.5
• DataNucleous since it uses JPA 1.0 that is needed to work on a Glassfish 2.1.1 server.
• Spring MVC
• Oracle database

The only changes I done to the entities is to override the toString method and to specify a @SequenceGenerator. The controllers have not been changed at all.

Did anybody experience a similar problem? Any theory on what could be wrong here?

[Insano]

This issue is not reproducible with Eclipselink. But I can't use EclipseLink since it is a JPA 2.0 implementation.

[Insano]

This seems to be a bug in Roo. This issue can be reproduced with the following commands:

project --topLevelPackage com.example.demo --projectName demo --java 6
persistence setup --database HYPERSONIC_IN_MEMORY --provider DATANUCLEUS 
entity --class ~.model.Car
field string --fieldName name --notNull
field date --type java.util.Date --fieldName createdDate 
web mvc setup 
focus --class ~.model.Car
web mvc scaffold ~.web.CarController

Steps to reproduce:

1. Create new Roo project wtih the commands above
2. Create new car
3. Edit car and click on save
4. Go to list view

Notice that you will now have 2 cars instead of an edited car.

[Insano]

This also happens with Roo 1.2M1

[Insano]

https://jira.springsource.org/browse/ROO-2825 created.

[kristaps.petersons]

I had the same problem. I was setting all fields except version, after setting that it was ok.