Мне интересна вторая Ошибка
(Метод readObject(java.io.ObjectInputStream s) класса Solution не должен быть synchronized.)
Почему??
Здесь есть value // count и они меняются.
private synchronized void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException {
java.io.ObjectInputStream.GetField fields = s.readFields();
value = (char[]) fields.get("value", null);
count = fields.get("count", 0);
}package com.javarush.task.task17.task1717;
/*
Лишняя синхронизация
*/
public class Solution {
char[] value;
int count;
public synchronized Solution append(CharSequence s) {
if (s == null) {
s = "null";
}
if (s instanceof String) {
return this.append((String) s);
}
if (s instanceof Solution) {
return this.appendThis((Solution) s);
}
return this.append(s);
}
public synchronized Solution appendThis(Solution s) {
//do something here....
return this;
}
private static final java.io.ObjectStreamField[] serialPersistentFields =
{
new java.io.ObjectStreamField("value", char[].class),
new java.io.ObjectStreamField("count", Integer.TYPE),
new java.io.ObjectStreamField("shared", Boolean.TYPE),
};
private synchronized void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
java.io.ObjectOutputStream.PutField fields = s.putFields();
fields.put("value", value);
fields.put("count", count);
fields.put("shared", false);
s.writeFields();
}
private synchronized void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException {
java.io.ObjectInputStream.GetField fields = s.readFields();
value = (char[]) fields.get("value", null);
count = fields.get("count", 0);
}
public static void main(String[] args) {
}
}