Program: 178291
Project: 178291
Buggy source:
/** 
 * synchronously (not in a separate thread thread) send the specified command.  - Added synchronized keyword because the new I/O logic is extremely fast and causing us to send new commands before the prior has been seen. 
 * @param commandName
 * @return
 */
public synchronized boolean sendCommand_SYNC(String commandName){
  String response="String_Node_Str";
  if (ebt.isConnected() != true) {
    msg("String_Node_Str");
  }
  String command=dashdb.getCommandByName(commandName);
  if (command == null || command.length() < 1) {
    msg("String_Node_Str" + commandName);
    return false;
  }
  String cmdParts[]=command.split("String_Node_Str");
  String thisCommand="String_Node_Str";
  for (int i=0; i < cmdParts.length; i++) {
    thisCommand=cmdParts[i].trim();
    final String _thisCommand=thisCommand;
    if (DEBUG)     msg("String_Node_Str" + thisCommand);
    if (thisCommand.startsWith("String_Node_Str")) {
      try {
        if (DEBUG)         msg("String_Node_Str");
        String sleepduration=thisCommand.substring(1);
        int isleepduration=Integer.valueOf(sleepduration);
        if (DEBUG)         msg("String_Node_Str" + isleepduration);
        Thread.sleep(isleepduration * 100);
      }
 catch (      Exception e) {
        msg("String_Node_Str" + thisCommand + "String_Node_Str"+ e.getMessage());
      }
      continue;
    }
    if (thisCommand.contains("String_Node_Str")) {
      if (DEBUG)       msg("String_Node_Str");
      wakeUpAllNetworks();
      continue;
    }
    if (cmdParts[i].length() > 11) {
      setHeaders(cmdParts[i].substring(0,12));
      thisCommand=cmdParts[i].substring(12);
    }
    mhWorkerHandler.post(new Runnable(){
      public void run(){
        ebt.sendOBDCommand(_thisCommand);
      }
    }
);
  }
  return true;
}

Fixed version (ground truth):
/** 
 * synchronously (not in a separate thread thread) send the specified command.  - Added synchronized keyword because the new I/O logic is extremely fast and causing us to send new commands before the prior has been seen. 
 * @param commandName
 * @return
 */
public synchronized boolean sendCommand_SYNC(String commandName){
  String response="String_Node_Str";
  if (ebt.isConnected() != true) {
    msg("String_Node_Str");
  }
  String command=dashdb.getCommandByName(commandName);
  if (command == null || command.length() < 1) {
    msg("String_Node_Str" + commandName);
    return false;
  }
  String cmdParts[]=command.split("String_Node_Str");
  String thisCommand="String_Node_Str";
  for (int i=0; i < cmdParts.length; i++) {
    thisCommand=cmdParts[i].trim();
    if (DEBUG)     msg("String_Node_Str" + thisCommand);
    if (thisCommand.startsWith("String_Node_Str")) {
      try {
        if (DEBUG)         msg("String_Node_Str");
        String sleepduration=thisCommand.substring(1);
        int isleepduration=Integer.valueOf(sleepduration);
        if (DEBUG)         msg("String_Node_Str" + isleepduration);
        Thread.sleep(isleepduration * 100);
      }
 catch (      Exception e) {
        msg("String_Node_Str" + thisCommand + "String_Node_Str"+ e.getMessage());
      }
      continue;
    }
    if (thisCommand.contains("String_Node_Str")) {
      if (DEBUG)       msg("String_Node_Str");
      wakeUpAllNetworks();
      continue;
    }
    if (cmdParts[i].length() > 11) {
      String headers=cmdParts[i].substring(0,12);
      thisCommand=cmdParts[i].substring(12);
      setHeaders(headers);
    }
    ebt.sendOBDCommand(thisCommand);
  }
  return true;
}