private CollectorConfigurationImpl getMutableCollectorConfiguration() {
   CollectorConfiguration configuration =
       ConfigurationServiceImpl.getInstance().getCollectorConfiguration();
   return ConfigurationImplHelper.copyOf(configuration);
 }
 private AgentConfigurationImpl getMutableAgentConfiguration() {
   AgentConfiguration configuration =
       ConfigurationServiceImpl.getInstance().getAgentConfiguration();
   return ConfigurationImplHelper.copyOf(configuration);
 }