VOs are corrupted after copying from one machine to another

Hi all
I have a customer with the following problem:
A team of developers are creating custom pages on different PCs for the same project.
In order to have the latest BC4J objects for everyone, VOs (XML file and Impl.java and RowImpl.java) are copied from one machine to another and added to the project.
But when doing this and trying to view the attributes of the new VO on the machine where the new VO si copied over will result in an error:
java.lang.NullPointerException
at oracle.jbo.dt.ui.view.VOAttributePanel.getFieldType(VOAttributePanel.java:687)
at oracle.jbo.dt.ui.view.VOAttributePanel.actionPerformed(VOAttributePanel.java:851)
at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1197)
at javax.swing.JComboBox.setSelectedItem(JComboBox.java:561)
at oracle.jbo.dt.ui.view.VOAttributePanel.setFieldType(VOAttributePanel.java:754)
at oracle.jbo.dt.ui.view.VOAttributePanel.updateControls(VOAttributePanel.java:393)
at oracle.jbo.dt.ui.view.VOAttributePanel.setAttribute(VOAttributePanel.java:642)
at oracle.jbo.dt.ui.view.VOAttributeTabPanel.updateControls(VOAttributeTabPanel.java:33)
at oracle.jbo.dt.ui.entity.EOAttributeTabPanel.setAttribute(EOAttributeTabPanel.java:143)
at oracle.jbo.dt.ui.view.VOEditAttributeTabPanel.attrValueChanged(VOEditAttributeTabPanel.java:301)
at oracle.jbo.dt.ui.view.VOEditAttributeTabPanel.enter(VOEditAttributeTabPanel.java:107)
at oracle.jbo.dt.ui.main.dlg.DtuWizard.selectPage(DtuWizard.java:620)
at oracle.jbo.dt.ui.main.dlg.DtuWizard.selectPage(DtuWizard.java:595)
at oracle.jbo.dt.ui.view.VOWizard.selectPage(VOWizard.java:243)
Please notice that source JDeveloper version and target JDeveloper version are the same and are coming from the same JDev OA patch.
The only workaround i could find is creating the VO from scratch on the 2nd installation, but this reduces very much the development time, because developers are doing the same work other developer had undertaken before, so there is no benefit from this.
I got exactely the same result when copying the VO on the same machine in 2 different JDev installations (with the same version of course).
I have a very simple reproducible testcase with OA Toolbox tutorial:
Requirements:
- Two (2) workstations
- Each workstation must contain same copy of JDeveloper project (JPR file)
- Toolbox Tutorial project
Steps:
Workstation 1
1. Go to Tutorial.jpr project -> Business Components -> oracle.apps.fnd.framework.toolbox.schema.server
2. Right click package then select New View Object.
3. Proceed with the creation of the View Object using wizard.
4. Name the View Object as CustomerSupportVO
5. Select EmployeeEO and AddressEO.
6. Select all possible attributes.
7. On Step 6 of wizard, check Generate Java File for View Row Implementation.
8. Click Finish.
9. Save Project.
10. Copy CustomerSupportVO.xml, CustomerSupportVOImpl.java, CustomerSupportVORowImpl.java to shared folder.
Workstation 2
1. Copy CustomerSupportVO.xml, CustomerSupportVOImpl.java, CustomerSupportVORowImpl.java from shared folder to Workstation2/JDEV_HOME/myprojects/oracle\apps\fnd\framework\toolbox\schema\server.
2. Go to Tutorial.jpr project -> Business Components -> oracle.apps.fnd.framework.toolbox.schema.server
3. In the System Navigator, click on Add to Tutorial.jpr icon.
4. Select CustomerSupportVO.xml then click Open.
5. Click ok when prompt to add View Object’s components.
6. Right Click on CustomerSupportVO from Business Components.
7. Select Edit CustomerSupportVO.
Can you let me know if there is a more simple workaround?
Thank you in advance,
Dan Cretu
EMEA ATG team

I had faced similar issue earlier. I just copied the VO query(and all necessary information) and removed it (deleted) from the project. Upon recreation of the new VO (same name) the issue was resolved.
Not very sure as to why the VO.xml got corrupted in your case, but this solution works.
Thanks

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