code: public ConnectionPool getPool() throws ConnectionPoolNotFoundException {
          ConnectionPool connectionPool = null;
  
          try {
              if (h_ConnectionPools.containsKey(defaultPoolName)) {
                  connectionPool = h_ConnectionPools.get(defaultPoolName);
              } else {
                  // Error: default pool was never initialized or could not be found
                  throw new ConnectionPoolNotFoundException("Default connection pool "
                          + "not found: " + defaultPoolName);
              }
  
          } catch (Throwable th) {
              throw new ConnectionPoolNotFoundException("The default connection "
                      + "pool \"" + defaultPoolName
                      + "\" could not be found. The " + "underlying error was a "
                      + th.getClass().getName() + "The message was \""
                      + th.getMessage() + "\".");
          }
  
          return connectionPool;
      }
docs: <p>
  Gets the default Connection Pool. This method overrides <code>
  getPool(String poolName)</code>
  .
  </p>
  
  @return The default connection pool.
  @throws ConnectionPoolNotFoundException
  If the default connection pool cannot be found.