Creating extension for IExpense View Object Expense Types ends in error cannot be cast to java.lang.

Hi,

We are using JDevelopper 10.1.3.3.0.3 with EBS 12.1.1

We are trying to modify the ExpenseTypesVO. So we like to do an extension for it CGOExpenseTypesVO.

I copy all $JAVA_TOP/oracle/apps/ap files under myprojects.

Create a new workspace, create a new project. Then create a new VO that extends the seeded one. We keep (for the moment) the same query and everything. Only trying to see if it can be done easily.

One the VO is created, I make and rebuild without an error or warning.

Then I create the substituion.

I Import using JPXIMPORT. Then make and rebuild again without an error or warning. Copy the files under the instance in the CGO directory of the application under JAVA_TOP.