How to use

poll

method

in

org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl$PooledConnections

public Connection getConnection() throws SQLException {
  startIfNeeded();
  statelock.readLock().lock();
  try {
    return pool.poll();
  }
  finally {
    statelock.readLock().unlock();
  }
}

public Connection poll() throws SQLException {
  Connection conn = availableConnections.poll();
  if ( conn == null ) {
    synchronized (allConnections) {
      if(allConnections.size() < maxSize) {
        addConnections( 1 );
        return poll();
      }
    }
    throw new HibernateException( "The internal connection pool has reached its maximum size and no connection is currently available!" );
  }
  conn.setAutoCommit( autoCommit );
  return conn;
}

public Connection getConnection() throws SQLException {
  startIfNeeded();
  statelock.readLock().lock();
  try {
    return pool.poll();
  }
  finally {
    statelock.readLock().unlock();
  }
}

public Connection poll() throws SQLException {
  Connection conn = availableConnections.poll();
  if ( conn == null ) {
    synchronized (allConnections) {
      if(allConnections.size() < maxSize) {
        addConnections( 1 );
        return poll();
      }
    }
    throw new HibernateException( "The internal connection pool has reached its maximum size and no connection is currently available!" );
  }
  conn.setAutoCommit( autoCommit );
  return conn;
}