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  1. public class Main implements Thread.UncaughtExceptionHandler {
  2.  
  3. public static void main(String[] args) {
  4.     Main main=new Main();
  5.     Thread childThread=new ChildThread();
  6.     childThread.start();
  7.     childThread.setUncaughtExceptionHandler(main);
  8.     for(int i=0; i < 100; i ++) {
  9.         try {
  10.             Thread.sleep(100);
  11.             //System.out.println("Main thread, loop "+i);
  12.         }
  13.         catch(InterruptedException e) {
  14.             break;
  15.         }
  16.     }
  17. }
  18.  
  19. public void uncaughtException(Thread t, Throwable e) {
  20.     System.out.println("We are in " + Thread.currentThread().getClass().getName() + " and this is correct!");
  21.     System.out.println("Caught thread "+t.getClass().getName()+" - we're back in main thread! (this is fucking lie)");
  22.     }
  23. }
  24.  
  25. class ChildThread extends Thread {
  26.  
  27. @Override
  28. public void run() {
  29.     int j=0;
  30.     while(true) {
  31.         try {
  32.             Thread.sleep(100);
  33.             System.out.println("Child thread, loop "+j++);
  34.             if(j>=10) {
  35.                 throw new RuntimeException("Test!");
  36.             }
  37.  
  38.         }
  39.         catch(InterruptedException e) {
  40.             break;
  41.         }
  42.     }
  43.   }
  44. }
  45.  
Success #stdin #stdout 0.06s 380480KB
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stdin
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Standard input is empty
stdout
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Child thread, loop 0
Child thread, loop 1
Child thread, loop 2
Child thread, loop 3
Child thread, loop 4
Child thread, loop 5
Child thread, loop 6
Child thread, loop 7
Child thread, loop 8
Child thread, loop 9
We are in ChildThread and this is correct!
Caught thread ChildThread - we're back in main thread! (this is fucking lie)
https://ideone.com/l4U1i1
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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