FULL PRODUCT VERSION :
JRE 1.5.0_06-b05

ADDITIONAL OS VERSION INFORMATION :
Windows XP Professional SP2

EXTRA RELEVANT SYSTEM CONFIGURATION :
Running Internet Explorer 6.0

A DESCRIPTION OF THE PROBLEM :
This problem can best be described by looking at the reports on the Java forum here: http://forum.java.sun.com/thread.jspa?messageID=4094971

In short, setting the applet's memory to -Xmx512M (or perhaps higher) causes this message to appear "Several Java Virtual Machines running in the same process caused an error"


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Set your applet to use -Xmx512M in Windows Control Panel, Java, Java tab, View (applet) parameters.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No error message should be displayed and the applet should use the memory it is told it can use if needed.
ACTUAL -
Error message is displayed (Several Java Virtual Machines running in the same process caused an error).


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Several Java Virtual Machines running in the same process caused an error


REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
None (other than to reduce the memory).