Apache Druid

Hey! Can someone please review this <https://github.com/apache/druid/pull/17146|PR> that is a potential fix for <https://github.com/apache/druid/issues/16783>
cc: <@U0319HD8HEC> <@U0318CX1NH4> <@U031A9D19NU>

I have an implementation doubt here.
When a task is being added to an executor which is in shutdown state, should we throw a `RejectedExecutionException` or just not add task in the queue without doing anything? I have implemented the second way, would like to have opinions on this.