Exception when taking a heapdump using JMAP

Question

I get the following exception when i take a heapdump using

jmap -F -dump:format=b,file=/tmp/heapdump/before.hprof 10737

Attaching t         


        

Answer 1

I was seeing the same error because my path to jmap wasn't the same as the path to the java process (i.e. targeting two different versions).

Running jmap with the full path to my JDK resolved it.