I could not found product.conf in my SQL Developer 4.0. Could you please point me the location of the file?
Please don't hijack another users thread. If you have a question or issue create a new thread and post it.
Before you post make sure you have actually unzipped the sql developer download and post your full version info.
On windows it will be in $USER$\AppData\Roaming directory for SQL Developer. Look for a 18.104.22.168.0 directory.