It looks like RsdsSbb is using an instance variable to store value of serviceCenterSCCPAddress which is not really needed and also breaks the SLEE architecture. Luckily in this Sbb it is not harmful as the rest of code only uses returned values of sccpAddress. It is not a bug but it can become a bug if overlooked in later changes and someone decides to use the instance variable value.
It looks like RsdsSbb is using an instance variable to store value of serviceCenterSCCPAddress which is not really needed and also breaks the SLEE architecture. Luckily in this Sbb it is not harmful as the rest of code only uses returned values of sccpAddress. It is not a bug but it can become a bug if overlooked in later changes and someone decides to use the instance variable value.
https://github.com/RestComm/smscgateway/blob/master/core/slee/services/sbbs/src/main/java/org/mobicents/smsc/slee/services/mt/RsdsSbb.java#L94