docs: @FFDCIgnore(IllegalArgumentException.class)
      private String evaluateGroupSearchBase(boolean immediateOnly) {
          try {
              return elHelper.processString("groupSearchBase", this.idStoreDefinition.groupSearchBase(), immediateOnly);
          } catch (IllegalArgumentException e) {
              if (TraceComponent.isAnyTracingEnabled() && tc.isWarningEnabled()) {
                  Tr.warning(tc, "JAVAEESEC_WARNING_IDSTORE_CONFIG", new Object[] { "groupSearchBase", "" });
              }
              return ""; /* Default value from spec. */
          }
      }