Thread Dumps with Solaris JDK 1.2.1_03 vs. JDK 1.3.1_01

Greetings,

Sending a SIGQUIT with JDK 1.2.1 on Solaris (Sparc) produced a thread dump followed by a nice menu like the following:

^\SIGQUIT

A SIGQUIT has been received. Do you want to:

[ 0 ] continue program

[ 1 ] check & print one deadlock

[ 2 ] check & print all deadlocks

[ 3 ] dump thread stacks

[ 4 ] dump lock registry

[ 5 ] heap inspection

[ 6 ] terminate program

Type number corresponding to selected action:

However, using 1.3.1, this menu no longer appears. Is there some other signal I can send the VM to generate a similar menu with 1.3.1?

Thank you for your time.

[692 byte] By [ad24482] at [2007-9-26 13:57:15]