Thread Dump not working

Hello,

I'm running a kill -QUIT on few process IDs (OS: Solaris) but the Thread Dump is empty.

Can you please help me get it back on?

Since I'm quite new to this, I'm not aware of the checks. Please let me know for the info required to debug this issue.

Thanks!

Where are you looking for thread dumps ?
Are these processes JVMs ?

Yes.

Can I use "jstack" instead of "kill -QUIT"?

Different JVM implementations use different syntax for heap/thread dump generation. Which JVM are you using?