Program: 34508
Project: 34508
Buggy source:
/** 
 * buildDubboServiceComponents
 * @param mdf
 * @param pi
 * @param appid
 * @param compServices
 */
@SuppressWarnings("String_Node_Str") private void buildDubboServiceComponents(MonitorDataFrame mdf,Map<String,Object> pi,String appid,Map<String,Set<String>> compServices){
  Map<String,Object> comps=mdf.getElemInstValues(appid,"String_Node_Str","String_Node_Str");
  if (comps == null || comps.size() == 0) {
    return;
  }
  pi.put("String_Node_Str",JSONHelper.toString(comps));
  for (  String compName : comps.keySet()) {
    Map<String,Object> info=(Map<String,Object>)comps.get(compName);
    Set<String> compServicesURLs=compServices.get(compName);
    if (compServicesURLs == null) {
      compServicesURLs=new HashSet<String>();
      compServices.put(compName,compServicesURLs);
    }
    String group=(String)info.get("String_Node_Str");
    String version=(String)info.get("String_Node_Str");
    String servcls=(String)info.get("String_Node_Str");
    Map<String,Object> compMethodInfo=(Map<String,Object>)info.get("String_Node_Str");
    if (compMethodInfo == null || compMethodInfo.size() == 0) {
      continue;
    }
    Map<String,Object> protocols=(Map<String,Object>)info.get("String_Node_Str");
    if (protocols == null || protocols.size() == 0) {
      continue;
    }
    for (    String method : compMethodInfo.keySet()) {
      for (      String protocol : protocols.keySet()) {
        Map<String,Object> pAttrs=(Map<String,Object>)protocols.get(protocol);
        Integer port=(Integer)pAttrs.get("String_Node_Str");
        String path=(String)pAttrs.get("String_Node_Str");
        path=(StringHelper.isEmpty(path)) ? servcls : path;
        String url=getDubboURL(group,version,method,port,protocol,path);
        compServicesURLs.add(url);
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * buildDubboServiceComponents
 * @param mdf
 * @param pi
 * @param appid
 * @param compServices
 */
@SuppressWarnings("String_Node_Str") private void buildDubboServiceComponents(MonitorDataFrame mdf,Map<String,Object> pi,String appid,Map<String,Set<String>> compServices){
  Map<String,Object> comps=mdf.getElemInstValues(appid,"String_Node_Str","String_Node_Str");
  String ip=mdf.getIP();
  if (comps == null || comps.size() == 0) {
    return;
  }
  pi.put("String_Node_Str",JSONHelper.toString(comps));
  for (  String compName : comps.keySet()) {
    Map<String,Object> info=(Map<String,Object>)comps.get(compName);
    Set<String> compServicesURLs=compServices.get(compName);
    if (compServicesURLs == null) {
      compServicesURLs=new HashSet<String>();
      compServices.put(compName,compServicesURLs);
    }
    String group=(String)info.get("String_Node_Str");
    String version=(String)info.get("String_Node_Str");
    String servcls=(String)info.get("String_Node_Str");
    Map<String,Object> compMethodInfo=(Map<String,Object>)info.get("String_Node_Str");
    if (compMethodInfo == null || compMethodInfo.size() == 0) {
      continue;
    }
    Map<String,Object> protocols=(Map<String,Object>)info.get("String_Node_Str");
    if (protocols == null || protocols.size() == 0) {
      continue;
    }
    for (    String method : compMethodInfo.keySet()) {
      for (      String protocol : protocols.keySet()) {
        Map<String,Object> pAttrs=(Map<String,Object>)protocols.get(protocol);
        Integer port=(Integer)pAttrs.get("String_Node_Str");
        String path=(String)pAttrs.get("String_Node_Str");
        path=(StringHelper.isEmpty(path)) ? servcls : path;
        String url=getDubboURL(ip,group,version,method,port,protocol,path);
        compServicesURLs.add(url);
      }
    }
  }
}