If you are using ADF 11g and you encounter this issue kindly check your ps_txn table. You can delete the records from this table and then you will see that this error will go away. This table is used by ADFm internally to serialize user session state to database, so …

You might face a scenario where you have to reuse the same view object in different task flows. But the issue you will encounter if you are not using separate View Object instances is that changes made to view objects in one task flow will reflect in the view object …

This is a short tip on where to add the <af:resource type="javascript"> tag when you want to include javascript in your adf page fragment. The place to include the tag is inside of a root component layout like panelFormLayout or panelGroupLayout because otherwise if you place it outside …

If you have a requirement for opening a printable page and also the print dialog and you are using page fragments then you should implement the RegionController interface rather than  PagePhaseListener. I had such a requirement and then implemented it using RegionController interface. On any page fragment that you are …

In JDeveloper 11g, if you delete the database connection, you will notice that none of the oracle domain types will  appear in the drop down when you create new objects. This happens because  type map of bc4j components is changed to JAVA. Also this will cause problem in case you …