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  1. import java.io.FileOutputStream;
  2. import java.io.ObjectOutputStream;
  3. import java.io.Serializable;
  4.  
  5.  
  6. class Foo implements Serializable {
  7.   public static void main(String[] args) throws Exception {
  8.     int N = 10000;
  9.     Foo first = new Foo();
  10.     Foo current = first;
  11.     for (int i = 0; i < N; ++i) {
  12.       current.next = new Foo();
  13.       current = current.next;
  14.     }
  15.     current.next = first;
  16.     ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("test.obj"));
  17.     out.writeObject(first);
  18.     out.close();
  19.   }
  20.  
  21.   Foo() {}
  22.   Foo next;
  23. }
  24.  
  25.  
  26. /* Exception in thread "main" java.lang.StackOverflowError
  27.         at java.io.ObjectStreamClass$WeakClassKey.<init>(ObjectStreamClass.java:2307)
  28.         at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:322)
  29.         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1134)
  30.         at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
  31.         at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
  32.         at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
  33.         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
  34.         at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
  35.         at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
  36.         at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
  37.         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
  38.         at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
  39.         at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
  40.         at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) */
Runtime error #stdin #stdout #stderr 0.06s 380224KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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Exception in thread "main" java.io.FileNotFoundException: test.obj (Permission denied)
	at java.io.FileOutputStream.open(Native Method)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:212)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:104)
	at Foo.main(Main.java:16)
https://ideone.com/wATlNK
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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