HotJava freezes workstation on drag-n-drop from text field

When the following example html file is viewed
the system can freeze up when one enters text in the
"email address" (the second one) field and then
highlights and drags some text out of the field.
This bug is repeatable on my system.
I attach the sample html file.

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I forgot to mention that I am not sure of which release I
am using. I used:

(tilmann@koeln tilmann) mcs -V `which hotjava`
mcs: Software Generation Utilities (SGU) Solaris/ELF (3.0)

How do I find out?