docs: static InternalConfig load() throws JsonParseException, JsonMappingException, IOException {
          URL configUrl = getResource(DEFAULT_CONFIG_RESOURCE_RELATIVE_PATH, true, false);
          if (configUrl == null) {
              configUrl = getResource(DEFAULT_CONFIG_RESOURCE_ABSOLUTE_PATH, false, false);
          }
  
          InternalConfigJsonHelper config = loadfrom(configUrl, InternalConfigJsonHelper.class);
          InternalConfigJsonHelper configOverride;
  
          URL overrideUrl = getResource(CONFIG_OVERRIDE_RESOURCE, false, true);
          if (overrideUrl == null) {
              overrideUrl = getResource(CONFIG_OVERRIDE_RESOURCE, false, false);
          }
          if (overrideUrl == null) {
              log.debug("Configuration override " + CONFIG_OVERRIDE_RESOURCE + " not found.");
              configOverride = new InternalConfigJsonHelper();
          } else {
              configOverride = loadfrom(overrideUrl, InternalConfigJsonHelper.class);
          }
  
          EndpointDiscoveryConfig endpointDiscoveryConfig = new EndpointDiscoveryConfig();
  
          URL endpointDiscoveryConfigUrl = getResource(ENDPOINT_DISCOVERY_CONFIG_ABSOLUTE_PATH, false, false);
  
          if (endpointDiscoveryConfigUrl != null) {
              endpointDiscoveryConfig = loadfrom(endpointDiscoveryConfigUrl, EndpointDiscoveryConfig.class);
          }
  
          InternalConfig merged = new InternalConfig(config, configOverride, endpointDiscoveryConfig);
          merged.setDefaultConfigFileLocation(configUrl);
          merged.setOverrideConfigFileLocation(overrideUrl);
          return merged;
      }