code: private void processSecurityRoles(List<SecurityRole> securityRoles) {
          for (SecurityRole securityRole : securityRoles) {
              if (!allRoles.contains(securityRole.getRoleName())) {
                  allRoles.add(securityRole.getRoleName());
              }
          }
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "allRoles: " + allRoles);
          }
      }
docs: Create a list of roles that represent the security-role elements in the web.xml and/or web-fragment.xml
  
  @param securityRoles a list of security roles