code: public void commitAndClose() {
          try {
              LOG.info("Committing errors and closing SQL connection.");
              this.commit();
              // Close the connection permanently (should be called only after errorStorage instance no longer needed).
              connection.close();
          } catch (SQLException ex) {
              throw new StorageException(ex);
          }
      }
docs: This executes any remaining inserts, commits the transaction, and closes the connection permanently.
  commitAndClose() should only be called when access to SQLErrorStorage is no longer needed.