libjava/testsuite/libjava.lang/Array_3.java

   1 // Test to make sure null arrays throw the right execption
   2
   3 public class Array_3
   4 {
   5   static Object foo ()
   6   {
   7     return null;
   8   }
   9
  10   static int[] bar ()
  11   {
  12     return null;
  13   }
  14
  15   static int baz ()
  16   {
  17     int[] x = (int[])null;
  18     int nn = x.length;
  19     return 5;
  20   }
  21
  22   public static void main(String args[])
  23   {
  24     boolean ok = false;
  25     int nn = 0;
  26
  27     try
  28       {
  29         int[] x = (int[])foo();
  30         nn = x.length;
  31       }
  32     catch (NullPointerException _)
  33       {
  34         ok = true;
  35       }
  36     if (!ok)
  37       throw new RuntimeException("test failed:1");
  38
  39     ok = false;
  40     try
  41       {
  42         int[] x = bar();
  43         nn = x.length;
  44       }
  45     catch (NullPointerException _)
  46       {
  47         ok = true;
  48       }
  49     if (!ok)
  50       throw new RuntimeException("test failed:2");
  51
  52     ok = false;
  53     try
  54       {
  55         int[] x = bar();
  56         nn = x[0];
  57       }
  58     catch (NullPointerException _)
  59       {
  60         ok = true;
  61       }
  62
  63     if (!ok || nn != 0)
  64       throw new RuntimeException("test failed:3");
  65
  66     ok = false;
  67     try
  68       {
  69         int[] x = (int[])null;
  70         nn = x.length;
  71       }
  72     catch (NullPointerException _)
  73       {
  74         ok = true;
  75       }
  76     if (!ok)
  77       throw new RuntimeException("test failed:4");
  78
  79     ok = false;
  80     try
  81       {
  82         nn = baz ();
  83       }
  84     catch (NullPointerException _)
  85       {
  86         ok = true;
  87       }
  88     if (!ok)
  89       throw new RuntimeException("test failed:5");
  90   }
  91 }