How to get Hung Thread Metrics using JMX Extension

[Beginner]

Hi

I'm new to Dynatrace, can you please tell me how to get the Hung Thread Metrics for the Application using JMX Extension? Because I'm not able to find it, I can only see the following thread metrics in java.lang domain
CurrentThreadCpuTime
CurrentThreadUserTime
DaemonThreadCount
PeakThreadCount
ThreadCount
TotalStartedThreadCount

Actually, I want the hung thread metrics for the alerting process. When the Application Hung Thread Count goes above 8, then the dynatrace will trigger a mail.

[DanielS · Accepted solution]

Hi @Beginner the best description for use JMX extensions could be found here. After that you need to setup an alerting profile, a problem notification and a metric event to trigger the mail.