When readiness probe is enabled, why zombie processes are getting created within the Red Hat AMQ broker pod ?

Issue

When readiness probe is enabled, why zombie processes are getting created within the Red Hat AMQ broker pod ?.

Readiness probe included with the deployment

         readinessProbe:
            exec:
              command:
              - "/bin/bash"
              - "-c"
              - "/opt/amq/bin/readinessProbe.sh"

Zombies processes created within the pod

1000650+ 4140953   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1000650+ 4143843   10918  0 Oct20 ?        00:00:00 [es_util] <defunct>
1000650+ 4143849   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1000850+ 4146897   10154  0 Oct20 ?        00:00:00 [python] <defunct>
1000650+ 4148470   10918  0 Oct20 ?        00:00:00 [es_util] <defunct>
1000650+ 4148471   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1000820+ 4153368   59774  0 Oct21 ?        00:00:00 [python] <defunct>
1000650+ 4154126   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1000650+ 4158209   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1003050+ 4162902  107783  0 Oct20 ?        00:00:00 [rm] <defunct>
1000850+ 4163032   17311  0 Oct20 ?        00:00:00 [python] <defunct>
1003050+ 4163818   25741  0 Oct20 ?        00:00:00 [readinessProbe.] <defunct>
1003050+ 4163819   25741  0 Oct20 ?        00:00:00 [readinessProbe.] <defunct>
1003050+ 4163971 1922226  0 Oct20 ?        00:00:00 [python] <defunct>
1003050+ 4166477  107783  0 02:37 ?        00:00:00 [readinessProbe.] <defunct>
1003050+ 4166811 1922226  0 02:37 ?        00:00:00 [readinessProbe.] <defunct>
1003050+ 4166812 1922226  0 02:37 ?        00:00:00 [readinessProbe.] <defunct>
1003050+ 4186036  107783  0 Oct20 ?        00:00:00 [python] <defunct>
1000650+ 4186122   10918  0 Oct20 ?        00:00:00 [es_util] <defunct>
1000650+ 4186123   10918  0 Oct20 ?        00:00:00 [curl] <defunct>
1003050+ 4191856   16117  0 Oct20 ?        00:00:00 [readinessProbe.] <defunct>