Name: md23716 Date: 01/21/2001

     UNEXPECTED BEHAVIOUR

     Test case:

     --------------------------------------------------------------------
     01 import java.lang.*;
     02 import java.util.*;
     03
     04 public class InfiniteLoop
     05 {
     06 InfiniteLoop()
     07 {
     08 }
     09
     10 public static void main(String args[])
     11 {
     12 (new InfiniteLoop()).run();
     13 }
     14
     15 public void run()
     16 {
     17 System.out.println("In InfiniteLoop.run()");
     18
     19 boolean i = true;
     20 int j = 0;
     21 while(i)
     22 {
     23 System.out.println("j = " + (j++));
     24 try
     25 {
     26 Thread.sleep(500);
     27 }
     28 catch (Exception excp)
     29 {
     30 }
     31 }
     32 }
     33 }
     --------------------------------------------------------------------

     1. Start jdb (which uses the new JPDA) on InfiniteLoop:

          jdb InfiniteLoop

     2. Set breakpoints at lines 23 and 26:

          stop at InfiniteLoop:23
          stop at InfiniteLoop:26

     3. Run

          run

     4. Continue several times, note that after stopping on
        line 26 the first time, jdb never stops there again:

          cont
          ...

     5. Try to do some step overs - note that jdb only steps
        on line 23 and not the other executable lines:

          next
          ...

     Note that if the test case is started again and instead
     of setting the above breakpoints you break at line 17 and
     start stepping over from there, jdb will work properly
     and will stop on each executable line in the loop.

4. Targeted FCS Release

     SOLARIS JDK 1.3.1





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