4
객체 직렬화와 함께 작동하는 클래스를 작성했습니다. 직렬화 단계에서 예외가 발생하는 것 같습니다. 이 예외에 대해 아무 것도 찾을 수 없었습니다. 또한 HashMap의 별칭 Node를 사용하여 내부 클래스를 찾을 수 없었습니다.
[04/01/15 2:33 PM]: java.io.NotSerializableException: java.util.HashMap$Node
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
[04/01/15 2:33 PM]: at java.util.ArrayList.writeObject(ArrayList.java:762)
[04/01/15 2:33 PM]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[04/01/15 2:33 PM]: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[04/01/15 2:33 PM]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[04/01/15 2:33 PM]: at java.lang.reflect.Method.invoke(Method.java:483)
[04/01/15 2:33 PM]: at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
[04/01/15 2:33 PM]: at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
[04/01/15 2:33 PM]: at ab.server.data.ServerData.saveField(ServerData.java:157)
[04/01/15 2:33 PM]: at ab.server.data.ServerData.processQueue(ServerData.java:195)
[04/01/15 2:33 PM]: at ab.Server.lambda$0(Server.java:260)
[04/01/15 2:33 PM]: at ab.Server$$Lambda$15/2011997442.run(Unknown Source)
[04/01/15 2:33 PM]: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[04/01/15 2:33 PM]: at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[04/01/15 2:33 PM]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[04/01/15 2:33 PM]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[04/01/15 2:33 PM]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[04/01/15 2:33 PM]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[04/01/15 2:33 PM]: at java.lang.Thread.run(Thread.java:745)
이것은 직렬화되는 클래스입니다.
public class WellOfGoodWill implements Serializable {
private static final long serialVersionUID = -3335621107999346623L;
/**
* The total number of winners possible for each draw
*/
private static final int MAXIMUM_WINNERS = 3;
/**
* Compares the value of an entry
*/
private static final Comparator<Entry<String, Integer>> HIGHEST_VALUE = Entry.comparingByValue();
/**
* Contains all of the entries for the week
*/
private HashMap<String, Integer> entries = new HashMap<>();
/**
* Winners of the previous week
*/
private Collection<Entry<String, Integer>> winners;
/**
* The date the week is over. The initial date is set.
*/
private Date date = Misc.getFutureDate(2014, Calendar.DECEMBER, 28, 18, 0, 0);
/**
* Requests that an update be made on the entries variable.
* @param player the key being updated
* @param amount the amount being added
*/
public void update(String player, Integer amount) {
if (!entries.containsKey(player)) {
entries.put(player, amount);
} else {
int oldValue = entries.get(player);
entries.replace(player, oldValue, oldValue + amount);
}
Server.getServerData().setWellOfGoodWill(this);
}
/**
* Clears all entries in the map
*/
public void clear() {
entries.clear();
}
/**
* Determines the weekly winner based on their contributions
* @return the winner
*/
public Collection<Entry<String, Integer>> getSortedResults() {
List<Entry<String, Integer>> list = new ArrayList<>(entries.entrySet());
list.sort(HIGHEST_VALUE);
Collections.reverse(list);
return new ArrayList<>(list.subList(0, list.size() < MAXIMUM_WINNERS ? list.size() : MAXIMUM_WINNERS));
}
/**
* The map containing all of the entries for the week
* @return the entries
*/
public Map<String, Integer> getEntries() {
return entries;
}
/**
* The winner of the previous week
* @return the winner
*/
public Collection<Entry<String, Integer>> getWinners() {
return winners;
}
/**
* Sets the new winner of the week
* @param winner the winner
*/
public void setWinners(Collection<Entry<String, Integer>> winners) {
this.winners = winners;
}
/**
* The date the week started
* @return the date
*/
public Date getDate() {
return date;
}
/**
* Sets the date of the week the event starts on
* @param date the date
*/
public void setDate(Date date) {
this.date = date;
}
}
모든 기본 시리얼이 작업을 위해 일시적 또는 직렬화 중 하나를해야합니다. – Prashant
Collection 및 Entry 모두 Serializable을 구현하지 않아서 클래스에 필요한 수정을가했습니다. –
지금 작동합니까 ?? – Prashant