public void applyChanges() {
    String hostName = getHostName();
    if (hostName == null) {
      health.setDefaultGemFireHealthConfig(this);

    } else {
      health.setGemFireHealthConfig(hostName, this);
    }
  }
Applies the changes made to this config back to the health monitor.

@see GemFireHealth#setDistributedSystemHealthConfig
geode-core/src/main/java/org/apache/geode/admin/jmx/internal/GemFireHealthConfigJmxImpl.java