docs: private void checkCompatibility() throws SQLException, BlockStoreException {
          for(String sql : getCompatibilitySQL()) {
              PreparedStatement ps = null;
              try {
                  ps = conn.get().prepareStatement(sql);
                  ResultSet results = ps.executeQuery();
                  results.close();
              } catch (SQLException ex) {
                  throw new BlockStoreException("Database block store is not compatible with the current release.  " +
                          "See bitcoinj release notes for further information: " + ex.getMessage());
              } finally {
                  if (ps != null && !ps.isClosed()) {
                      ps.close();
                  }
              }
          }
      }