Program: 64816
Project: 64816
Buggy source:
IRCBotUser fromIRC(final User user,final Event<PircBotX> event){
  return new IRCBotUser(){
    @Override public boolean message(    String msg,    boolean success){
      try {
        senderSemaphore.acquire();
      }
 catch (      InterruptedException e) {
        return false;
      }
      try {
        pinger.ping((CloseableBot)user.getBot());
        user.send().message(msg);
        MDC.put(MDC_STATE,"String_Node_Str");
        if (success) {
          MDC.put(MDC_DURATION,System.currentTimeMillis() - event.getTimestamp() + "String_Node_Str");
          MDC.put(MDC_SUCCESS,"String_Node_Str");
          MDC.put(MCD_OSU_API_RATE_BLOCKED_TIME,String.valueOf(rateLimiter.blockedTime()));
          if (Objects.equals(MDC.get(MDC_HANDLER),RecommendHandler.MDC_FLAG)) {
            botInfo.setLastRecommendation(System.currentTimeMillis());
          }
        }
        log.debug("String_Node_Str" + msg);
        botInfo.setLastSentMessage(System.currentTimeMillis());
        return true;
      }
 catch (      IOException|InterruptedException e) {
        log.error("String_Node_Str" + e.getMessage());
        return false;
      }
 finally {
        MDC.remove(MDC_DURATION);
        MDC.remove(MDC_SUCCESS);
        MDC.remove(MCD_OSU_API_RATE_BLOCKED_TIME);
        senderSemaphore.release();
      }
    }
    @Override public boolean action(    String msg){
      try {
        senderSemaphore.acquire();
      }
 catch (      InterruptedException e) {
        return false;
      }
      try {
        pinger.ping((CloseableBot)user.getBot());
        user.send().action(msg);
        MDC.put(MDC_STATE,"String_Node_Str");
        log.debug("String_Node_Str" + msg);
        return true;
      }
 catch (      IOException|InterruptedException e) {
        log.error("String_Node_Str" + e.getMessage());
        return false;
      }
 finally {
        senderSemaphore.release();
      }
    }
    @Override @IRCName @SuppressFBWarnings(value="String_Node_Str",justification="String_Node_Str") public String getNick(){
      return user.getNick();
    }
  }
;
}

Fixed version (ground truth):
IRCBotUser fromIRC(final User user,final Event<PircBotX> event){
  return new IRCBotUser(){
    @Override public boolean message(    String msg,    boolean success){
      try {
        senderSemaphore.acquire();
      }
 catch (      InterruptedException e) {
        Thread.currentThread().interrupt();
        return false;
      }
      try {
        pinger.ping((CloseableBot)user.getBot());
        user.send().message(msg);
        MDC.put(MDC_STATE,"String_Node_Str");
        if (success) {
          MDC.put(MDC_DURATION,System.currentTimeMillis() - event.getTimestamp() + "String_Node_Str");
          MDC.put(MDC_SUCCESS,"String_Node_Str");
          MDC.put(MCD_OSU_API_RATE_BLOCKED_TIME,String.valueOf(rateLimiter.blockedTime()));
          if (Objects.equals(MDC.get(MDC_HANDLER),RecommendHandler.MDC_FLAG)) {
            botInfo.setLastRecommendation(System.currentTimeMillis());
          }
        }
        log.debug("String_Node_Str" + msg);
        botInfo.setLastSentMessage(System.currentTimeMillis());
        return true;
      }
 catch (      IOException|InterruptedException e) {
        log.error("String_Node_Str" + e.getMessage());
        return false;
      }
 finally {
        MDC.remove(MDC_DURATION);
        MDC.remove(MDC_SUCCESS);
        MDC.remove(MCD_OSU_API_RATE_BLOCKED_TIME);
        senderSemaphore.release();
      }
    }
    @Override public boolean action(    String msg){
      try {
        senderSemaphore.acquire();
      }
 catch (      InterruptedException e) {
        Thread.currentThread().interrupt();
        return false;
      }
      try {
        pinger.ping((CloseableBot)user.getBot());
        user.send().action(msg);
        MDC.put(MDC_STATE,"String_Node_Str");
        log.debug("String_Node_Str" + msg);
        return true;
      }
 catch (      IOException|InterruptedException e) {
        log.error("String_Node_Str" + e.getMessage());
        return false;
      }
 finally {
        senderSemaphore.release();
      }
    }
    @Override @IRCName @SuppressFBWarnings(value="String_Node_Str",justification="String_Node_Str") public String getNick(){
      return user.getNick();
    }
  }
;
}