HELP URGENT - Entity Object Substitution not working as advertised!!!!!

Question

Hi All,
I have done an entity Object substitution and in order to rule out any coding errors on my part I have generated a fresh EO with no code changes in it and uploaded the files to java top and updated the MDS with the substitution.
The substitution is successful but I get the following error related to my substituted file:
oracle.apps.fnd.framework.OAException: oracle.jbo.AttrValException: JBO-27019: Get method for attribute "ItemNumber" in XxEgoMtlSystemItemsVLEOEx could not be resolved. at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:912) at oracle.apps.fnd.framework.webui.OAPageErrorHandler.prepareException(OAPageErrorHandler.java:1169) at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3241) at oracle.apps.fnd.framework.webui.OAPageBean.renderDocument(OAPageBean.java:3036)
## Detail 0 ## java.lang.ClassCastException: oracle.jbo.server.EntityDefImpl incompatible with oracle.apps.fnd.framework.server.OAEntityDefImpl at oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEOImpl.getDefinitionObject(EgoMtlSystemItemsVLEOImpl.java:562) at oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEOImpl.getItemNumber(EgoMtlSystemItemsVLEOImpl.java:11324) at oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEOImpl.getAttrInvokeAccessor(EgoMtlSystemItemsVLEOImpl.java:6888)
I think the real error is Detail 0 line but I haven't seen this before. Could this be the wrong version of JDeveloper that I have used????? About this page showed 12.1.2 and I have downloaded the JDev for 12.1.2???????
Please help I need to sort this ASAP.
Thanks all

Answer 1

I have covered everything in the above threads and followed the EO substitution scenario exactly as per area51.
I am now getting a different error on the EO substitution, when the page loads that creates a row in the EO the following error is displayed:
Error
1. Attribute set for InventoryItemId in view object EgoMtlSystemItemsVO failed
2. Attribute set for InventoryItemId in view object EgoMtlSystemItemsVO failed
3. Attribute set for InventoryItemId in view object EgoMtlSystemItemsVO failed
4. Attribute set for InventoryItemId in view object EgoMtlSystemItemsVO failed
This is a caught error and thrown to the top of the page as opposed to a complete stack error which is what I was getting before? At first I thought this was due to the VO substitution I had done earlier as a test but I have deleted the substitution document for the VO sub and if I remove my EO substitution the page works fine so my EO substitution is causing the problem.
EO substitution was as follows:
<Substitutes>
<Substitute OldName ="oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEO" NewName ="xxsdg.oracle.apps.ego.item.eu.server.XxEgoMtlSystemItemsVLEOEx" />
</Substitutes>
Beginning of EO Code is as follows:
package xxsdg.oracle.apps.ego.item.eu.server;
import oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEOImpl;
import oracle.apps.fnd.framework.server.OAEntityDefImpl;
import oracle.jbo.AttributeList;
import oracle.jbo.domain.Date;
import oracle.jbo.domain.Number;
import oracle.jbo.domain.RowID;
import oracle.jbo.server.AttributeDefImpl;
import oracle.jbo.server.EntityDefImpl;
// --- File generated by Oracle ADF Business Components Design Time.
// --- Custom code may be added to this class.
// --- Warning: Do not modify method signatures of generated methods.
public class XxEgoMtlSystemItemsVLEOExImpl extends EgoMtlSystemItemsVLEOImpl {
public static final int MAXATTRCONST = EntityDefImpl.getMaxAttrConst("oracle.apps.ego.item.eu.server.EgoMtlSystemItemsVLEO");
public static final int GLOBALATTRIBUTE11 = MAXATTRCONST;
public static final int GLOBALATTRIBUTE12 = MAXATTRCONST + 1;
public static final int GLOBALATTRIBUTE13 = MAXATTRCONST + 2;
public static final int GLOBALATTRIBUTE14 = MAXATTRCONST + 3;
public static final int GLOBALATTRIBUTE15 = MAXATTRCONST + 4;
public static final int GLOBALATTRIBUTE16 = MAXATTRCONST + 5;
public static final int GLOBALATTRIBUTE17 = MAXATTRCONST + 6;
public static final int GLOBALATTRIBUTE18 = MAXATTRCONST + 7;
public static final int GLOBALATTRIBUTE19 = MAXATTRCONST + 8;
public static final int GLOBALATTRIBUTE20 = MAXATTRCONST + 9;
public static final int ROWID = MAXATTRCONST + 10;
private static OAEntityDefImpl mDefinitionObject;
/**This is the default constructor (do not remove)
public XxEgoMtlSystemItemsVLEOExImpl() {
/**Retrieves the definition object for this instance class.
public static synchronized EntityDefImpl getDefinitionObject() {
if (mDefinitionObject == null) {
mDefinitionObject =
(OAEntityDefImpl)EntityDefImpl.findDefObject("xxsdg.oracle.apps.ego.item.eu.server.XxEgoMtlSystemItemsVLEOEx");
return mDefinitionObject;
/**Add attribute defaulting logic in this method.
public void create(AttributeList attributeList) {
super.create(attributeList);
....