Javax.crypto.IllegalBlockSizeException on Federation Partner Operations

(Doc ID 2186267.1)

Last updated on SEPTEMBER 26, 2016

Applies to:

Oracle Access Manager - Version and later
Information in this document applies to any platform.


After upgrading Oracle Access Manager 11g (OAM) from to,  you are not able to open Federation or Security Token Service page . However, all other operations works fine, including federation from pre-existing profiles. 



From OAM console, go to configuration tab > Federation, or Security Token Service , you see "Could Not connect to Server" error. 


When you check the diagnostic log, it shows:



 Upgraded Oracle Access Manager from to


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