It appears that CurrencySymbols in LocaleElements_*.java need to be updated.

For example, CurrencySymbols is defined in LocaleElements_ar_SD.java
as follows:
  { "CurrencySymbols",
       new String[][] {
         {"SDP", "\u062c.\u0633.\u200f"}
       }
  },
But according to the latest ISO4217 data, currency code for SD is "SDD".
I don't know where "SDP" came from. It may be an obsolate code.
Anyway, CurrencySymbols should be reviewed.