Name: chT40241 Date: 11/03/97


Here is a simplified program where the exception stack trace contains
 incorrect and misleading information. It was incorrect with JDK 1.1.4
 as well, but it was less misleading, since in 1.1.4 it was incomplete,
 while in 1.1.5 it is actively wrong.
                                                                                                                                                  
 public class TestCase {
    public static void main(String args[]) {
       System.out.println("Hello world!");
       Object ao[] = new Object[1];
       int i = badConvert(ao.getClass(), ao);
    }
    public static int badConvert(Class type, Object o) {
      if (type == java.lang.Character.TYPE)
        return (int) ((Character) o).charValue();
      return ((Number) o).intValue();
    }
 }
                                                                           
 The example causes a ClassCastException to be thrown in line 10 of
 badConvert, but this method doesn't even show up in the stack trace,
 and a left-over method from a previous call occurs in its place.
                                                                           
 The exception report looks like:
                                                                           
 java.lang.ClassCastException: java.lang.Object
       at java.lang.System$DelegatingPrintStream.println(System.java:690)
       at TestCase.main(TestCase.java:5)

This is very misleading, and in a more complex application may make debugging very difficult.
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