user store role mapping feature

components/device-mgt-extensions/io.entgra.device.mgt.core.device.mgt.extensions.userstore.role.mapper/src/main/java/io/entgra/device/mgt/core/device/mgt/extensions/userstore/role/mapper/UserStoreRoleMapper.java

@@ -75,6 +75,7 @@ public class UserStoreRoleMapper implements ServerStartupObserver {
                                 .getTenantUserRealm(MultitenantConstants.SUPER_TENANT_ID).getUserStoreManager();
 
                 for (RoleMapping mapping : roleMappings) {
+                    if (userStoreManager.isExistingRole(mapping.getSecondaryRole())) {
                         String[] users = userStoreManager.getUserListOfRole(mapping.getSecondaryRole());
                         if (users != null && users.length > 0) {
                             List<String> primaryRoles = mapping.getInternalRoles();
@@ -113,6 +114,7 @@ public class UserStoreRoleMapper implements ServerStartupObserver {
                         }
                     }
                 }
+            }
         } catch (Exception e) {
             log.error("Error while getting user store...", e);
         } finally {