爲什麼我的應用程序拋出java.lang.ArrayIndexOutOfBoundsException:-1的Future.get()多線程
當調用的Future.getjava.lang.ArrayIndexOutOfBoundsException:-1
( )關於java.utils.concurrent.Future ??
List<Future> tableLoadings = new LinkedList<>();
ExecutorService executor = Executors.newFixedThreadPool(8);
try{
for(Entry<Integer, String> entry: farmIds.entrySet())
{
int id = entry.getKey();
String username = entry.getValue();
psLog.println("START ELABORAZIONE FARMACIA ID : "+ id+" TPH_USERNAME : "+username);
/*SdajSdaj*/
tableLoadings.add(executor.submit(new StatusMultiThreading(id, username, psLog, connSTORY, connCF, mongoDatabase)));
}
for (Future<Void> future : tableLoadings) {
try{
future.get();
}catch(Exception e){
psLog.println("[EE] ERORE ELABORAZIONE THREAD FARMACIA [EE] "+e.getMessage());
}
}
}finally{
executor.shutdown();
psLog.println("END CONSOLIDA STATUS FARMACIE");
}
這是日誌..
START ELABORAZIONE FARMACIA ID : 62 TPH_USERNAME : A0102987
START ELABORAZIONE FARMACIA ID : 63 TPH_USERNAME : A0103019
START SENDING DATA TO DB FARMID = 66
...
START SENDING DATA TO DB FARMID = 17
[EE] ERORE ELABORAZIONE THREAD FARMACIA [EE] java.lang.ArrayIndexOutOfBoundsException: -1
[EE] ERRORE ELABORAZIONE THREAD FARMACIA [EE] java.lang.ArrayIndexOutOfBoundsException: -1
END CONSOLIDA STATUS FARMACIE
Ø無法找到沒有錯,如果我調試。
我不能進去.get()方法,所以我不明白這行代碼是無效的。
在級聯異常的可能情況下,使用e.printStackTrace()(或更好的記錄)來了解錯誤的原因。 – tucuxi