During our applet compatibility testing, we found a small amount
of applets run into a problem in Hashtable.hashCode() and result in
        java.lang.StackOverflowError
         at java.util.Hashtable$Entry.hashCode(Unknown Source)

        The issue is that these applets put the hashtable object into itself
for some unknown reasons, and try to generate a hashCode. This causes
the following code in java.util.Hashtable to execute:

    public synchronized int hashCode() {
        int h = 0;
        Iterator i = entrySet().iterator();
        while (i.hasNext())
            h += i.next().hashCode();
        return h;
    }

        It will end up being a recursive call and cause stack overflow.
These applets work fine in MS VM because M$'s implementation of hashCode()
doesn't rely on the hashCode of the entries.

URL: www.playsite.com
Release: J2SE v1.3.1_01a, 1.4.
Platform: Win32