java_pid="$(pgrep -f java)"
echo "java process id: $java_pid"
if [ "$java_pid" ]
then
mkdir thread_dumps
jstack -l $java_pid >> thread_dumps/threaddumps_0.log
echo "created a file: threaddumps_0.log"
for i in {1..10}
  do
     sleep 60s
     jstack -l $java_pid >> thread_dumps/threaddumps_$i.log
     echo "created a file: $i"
 done
else
        echo "java pid is empty"
fi