tests/gc/FinalForce.java

   1 public class FinalForce {
   2         public static final int N=8;
   3
   4         public int id;
   5
   6         protected void finalize() throws Throwable {
   7                 System.out.println("\tFinalizing object #" + id);
   8
   9                 for (long i=0; i<40000000; i++);
  10
  11                 super.finalize();
  12         }
  13
  14         public static void main(String args[]) {
  15                 FinalForce f = null;
  16
  17                 System.out.println("Creating objects ...");
  18                 for (int i=0; i<N; i++) {
  19                         f = new FinalForce();
  20                         f.id = i;
  21                 }
  22                 f = null;
  23
  24                 System.out.println("Forcing finalization ...");
  25                 System.runFinalization();
  26
  27                 System.out.println("Forcing collection ...");
  28                 System.gc();
  29
  30                 System.out.println("Forcing finalization ...");
  31                 System.runFinalization();
  32
  33                 System.out.println("Shutting down ...");
  34                 System.exit(0);
  35         }
  36 }