Name: ddT132432 Date: 11/09/2001


java version "1.3.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_01)
Java HotSpot(TM) Client VM (build 1.3.1_01, mixed mode)

I tested java with a highly-recursive program. I tested, when a stack-overflow
occurs. I expected a stack-overflow or a running program. Instead this, java
requested me to report this error:
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Error ID: 53484152454432554E54494D450E43505000DB
#
# Problematic Thread: prio=5 tid=0x761990 nid=0x106 runnable
#

the following function call failed:
Ackermann(1L,6666L)

here is the java source:

package de.unilog.java.grundlagen;
public class HJW{

// Zeilenkommentar

/* mehrzeiliger
   Blockkommentar

java de.unilog.java.grundlagen.HJW
   
*/

public static void main(java.lang.String[] Uebergabeparameter)
{
    Ackermann();
}


private static void Ackermann()
{
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,0L));
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,1L));
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,2L));
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,3L));
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,4L));
  java.lang.System.out.println("Ackermann 0 -> " + Ackermann(0L,5L));
  java.lang.System.out.println("----------------------------------");
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,0L));
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,1L));
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,2L));
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,3L));
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,4L));
  java.lang.System.out.println("Ackermann 1 -> " + Ackermann(1L,5L));
  java.lang.System.out.println("Ackermann x -> " + Ackermann(1L,6666L));
  java.lang.System.out.println("----------------------------------");
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,0L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,1L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,2L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,3L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,4L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,5L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,6L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,7L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,8L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,9L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,10L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,11L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,12L));
  java.lang.System.out.println("Ackermann 2 -> " + Ackermann(2L,13L));
  java.lang.System.out.println("----------------------------------");
  java.lang.System.out.println("Ackermann 3 -> " + Ackermann(3L,0L));
  java.lang.System.out.println("Ackermann 3 -> " + Ackermann(3L,1L));
  java.lang.System.out.println("Ackermann 3 -> " + Ackermann(3L,2L));
  java.lang.System.out.println("Ackermann 3 -> " + Ackermann(3L,3L));
  java.lang.System.out.println("----------------------------------");
  java.lang.System.out.println("Ackermann 4 -> " + Ackermann(4L,0L));
  java.lang.System.out.println("Ackermann 4 -> " + Ackermann(4L,1L));
  java.lang.System.out.println("Ackermann 4 -> " + Ackermann(4L,2L));
}

private static long Ackermann(long m, long n)
{
   return
          (n == 0) ? 1L :
          (n == 1) ? 2L :
          (m == 0) ? n + 2L :
          Ackermann(m - 1, Ackermann(m, n - 1));
}

}

Webbugs Test < ----------------

Solaris 8
Using 1.3.1, 1.3.1_01, 1.4beta3 did not show this error. A Stack overflow
occurred.

Windows NT 4 SP6
Using 1.3.1, A Stack overflow occurred after some execution of the code.

Using 1.4-rc-b85, A Stack overflow occurred after some execution of
the code. No hotspot error occured

Using 1.3.1-01, The hotspot error listed above was experianced

Windows 2k
Using 1.3.1 and using 1.3.1_01 resulted in the same hotspot error listed
above.

Using 1.4-rc-b85, A Stack overflow occurred after some execution of the code.
No hotspot error occured

Release Regression From : 1.3.1
The above release value was the last known release where this
bug was knwon to work. Since then there has been a regression.

(Review ID: 135342)
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