@Override
  protected void releaseLock(final MasterProcedureEnv env) {
    env.getProcedureScheduler().wakeTableExclusiveLock(this, getTableName());
  }
@param env Uses this to set Procedure Owner at least.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/AbstractStateMachineTableProcedure.java