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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone {
  6.  
  7.     interface TestInterface <U> {
  8.         void test (U u);
  9.     }
  10.  
  11.     static class Test <T extends Test<T>> implements TestInterface<T> {
  12.         @Override public void test (T t) {
  13.             throw new RuntimeException("My exception");
  14.         }
  15.     }
  16.  
  17.     static class TestA extends Test<TestA> { }
  18.     static class TestB extends Test<TestB> { }
  19.  
  20.     public static void main (String[] args) throws Exception {
  21.  
  22.         try {
  23.     	    Test a = new TestA();
  24. 	        Test b = new TestB();
  25. 	        a.test(b);        
  26.         } catch (Exception x) {
  27.         	x.printStackTrace(System.out);
  28.         }
  29.  
  30.         try {
  31.     	    TestInterface a = new TestA();
  32. 	        Test b = new TestB();
  33. 	        a.test(b);        
  34.         } catch (Exception x) {
  35.         	x.printStackTrace(System.out);
  36.         }
  37.  
  38.         try {
  39.     	    TestInterface a = new TestA();
  40. 	        TestInterface b = new TestB();
  41. 	        a.test(b);        
  42.         } catch (Exception x) {
  43.         	x.printStackTrace(System.out);
  44.         }
  45.  
  46.     }
  47.  
  48. }
Success #stdin #stdout 0.07s 3359744KB
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Standard input is empty
stdout
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java.lang.RuntimeException: My exception
	at Ideone$Test.test(Main.java:13)
	at Ideone.main(Main.java:25)
java.lang.RuntimeException: My exception
	at Ideone$Test.test(Main.java:13)
	at Ideone$Test.test(Main.java:11)
	at Ideone.main(Main.java:33)
java.lang.RuntimeException: My exception
	at Ideone$Test.test(Main.java:13)
	at Ideone$Test.test(Main.java:11)
	at Ideone.main(Main.java:41)
https://ideone.com/y0THxm
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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