When we need to call the c/c program, it is JNA/JNI that we need to complete.

You can kill the progresses, parent, children and grandchildren which are of the same PGID

PGID=`ps j -A | grep 'xxxxx' | grep -v 'grep' | awk '{print  $3}'`
# safety kill application which could hook the sign to deal something
kill -SIGTERM -- -${PGID}

# just kill all the progresses
kill -9 -${pid}

• set the progress PGID and SID
• you can load the JNA/JNI from the jar, and don't need to set it in the classpath