question: private void validateStoragePolicySelection ( StoragePolicySelection storagePolicySelection ) { Assert . notNull ( storagePolicySelection , "A storage policy selection must be specified." ) ; businessObjectDataHelper . validateBusinessObjectDataKey ( storagePolicySelection . getBusinessObjectDataKey ( ) , true , true ) ; storagePolicyHelper . validateStoragePolicyKey ( storagePolicySelection . getStoragePolicyKey ( ) ) ; Assert . notNull ( storagePolicySelection . getStoragePolicyVersion ( ) , "A storage policy version must be specified." ) ; }
target:  Validates the storage policy selection. This method also trims the request parameters.