Program: 21429
Project: 21429
Buggy source:
@Override public boolean doInteraction(Object arg){
  if (!isEnabled() || getBooleanProperty(PROPERTY_EXTERN_RECONNECT_DISABLED,false)) {
    logger.info("String_Node_Str");
    return false;
  }
  retries++;
  int waitForReturn=getIntegerProperty(PROPERTY_IP_WAIT_FOR_RETURN,0);
  String executeIn=getStringProperty(PROPERTY_RECONNECT_EXECUTE_FOLDER);
  String command=getStringProperty(PROPERTY_RECONNECT_COMMAND);
  String parameter=getStringProperty(PROPERTY_RECONNECT_PARAMETER);
  int waittime=getIntegerProperty(PARAM_IPCHECKWAITTIME,0);
  int maxretries=getIntegerProperty(PARAM_RETRIES,0);
  int waitForIp=getIntegerProperty(PARAM_WAITFORIPCHANGE,10);
  logger.info("String_Node_Str" + NAME + "String_Node_Str"+ retries);
  String preIp=JDUtilities.getIPAddress();
  logger.finer("String_Node_Str" + preIp);
  logger.finer("String_Node_Str" + JDUtilities.runCommand(command,parameter,executeIn,waitForReturn));
  logger.finer("String_Node_Str" + waittime + "String_Node_Str");
  try {
    Thread.sleep(waittime * 1000);
  }
 catch (  InterruptedException e) {
  }
  String afterIP=JDUtilities.getIPAddress();
  logger.finer("String_Node_Str" + afterIP);
  long endTime=System.currentTimeMillis() + waitForIp * 1000;
  logger.info("String_Node_Str" + waitForIp + "String_Node_Str");
  while (System.currentTimeMillis() <= endTime && (afterIP.equals(preIp) || afterIP.equals("String_Node_Str"))) {
    try {
      Thread.sleep(5 * 1000);
    }
 catch (    InterruptedException e) {
    }
    afterIP=JDUtilities.getIPAddress();
    logger.finer("String_Node_Str" + afterIP);
  }
  if (!afterIP.equals(preIp) && !afterIP.equals("String_Node_Str")) {
    return true;
  }
  logger.finer("String_Node_Str" + retries + "String_Node_Str"+ maxretries);
  if (retries <= maxretries) {
    return doInteraction(arg);
  }
  return false;
}

Fixed version (ground truth):
@Override public boolean doInteraction(Object arg){
  if (!isEnabled() || getBooleanProperty(PROPERTY_EXTERN_RECONNECT_DISABLED,false)) {
    logger.info("String_Node_Str");
    return false;
  }
  retries++;
  int waitForReturn=getIntegerProperty(PROPERTY_IP_WAIT_FOR_RETURN,0);
  String executeIn=getStringProperty(PROPERTY_RECONNECT_EXECUTE_FOLDER);
  String command=getStringProperty(PROPERTY_RECONNECT_COMMAND);
  String parameter=getStringProperty(PROPERTY_RECONNECT_PARAMETER);
  int waittime=getIntegerProperty(PARAM_IPCHECKWAITTIME,0);
  int maxretries=getIntegerProperty(PARAM_RETRIES,0);
  int waitForIp=getIntegerProperty(PARAM_WAITFORIPCHANGE,10);
  logger.info("String_Node_Str" + NAME + "String_Node_Str"+ retries);
  String preIp=JDUtilities.getIPAddress();
  logger.finer("String_Node_Str" + preIp);
  logger.finer("String_Node_Str" + JDUtilities.runCommand(command,JDUtilities.splitByNewline(parameter),executeIn,waitForReturn));
  logger.finer("String_Node_Str" + waittime + "String_Node_Str");
  try {
    Thread.sleep(waittime * 1000);
  }
 catch (  InterruptedException e) {
  }
  String afterIP=JDUtilities.getIPAddress();
  logger.finer("String_Node_Str" + afterIP);
  long endTime=System.currentTimeMillis() + waitForIp * 1000;
  logger.info("String_Node_Str" + waitForIp + "String_Node_Str");
  while (System.currentTimeMillis() <= endTime && (afterIP.equals(preIp) || afterIP.equals("String_Node_Str"))) {
    try {
      Thread.sleep(5 * 1000);
    }
 catch (    InterruptedException e) {
    }
    afterIP=JDUtilities.getIPAddress();
    logger.finer("String_Node_Str" + afterIP);
  }
  if (!afterIP.equals(preIp) && !afterIP.equals("String_Node_Str")) {
    return true;
  }
  logger.finer("String_Node_Str" + retries + "String_Node_Str"+ maxretries);
  if (retries <= maxretries) {
    return doInteraction(arg);
  }
  return false;
}