private void handleResourceManagerException(IllegalArgumentException e,
      float currentEvictionHeapPercentage, float currentCriticalHeapPercentage) {
    String builder = "Caught exception attempting to set eviction heap percentage="
        + getEvictionHeapPercentage() + " and critical heap percentage="
        + getCriticalHeapPercentage()
        + ". The percentages will be set back to their previous values (eviction heap percentage="
        + currentEvictionHeapPercentage + " and critical heap percentage="
        + currentCriticalHeapPercentage + ").";
    getLogger().warn(builder, e);
  }
Instance reference which is set in static initialization blocks of any subclasses.
extensions/geode-modules/src/main/java/org/apache/geode/modules/session/bootstrap/AbstractCache.java