@Override
  public void toStringClassDetails(final StringBuilder sb) {
    sb.append(getClass().getSimpleName());
    sb.append(" table=");
    sb.append(getTableName());
  }
@param env Uses this to set Procedure Owner at least.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.java