I checked SR-A77553 and I see you attached the document 'Encryption AES 256.docx' that you are referencing.
In that document it states:
How to check application cryptography strength ?
Attached here is a small java program which can be run to check the strength offered by the installed jdk. If the encryption bit is displayed as 2147483647, the application can use either AES-128 bit or AES-256 bit encryption. If thedisplayed output is 128, the application can only use a AES-128 bit encryption.
Do you have the 'small java program' it refers to : and have tried running it ? Does it help ?