Apache commons | pool or pool2

I was just trying to use DataSource from apache commons-dbcp.jar. To do this, I just downloaded one of my examples. So far, so good. Example: ( this )

// Here are the dbcp-specific classes.
 // Note that they are only used in the setupDataSource
// method. In normal use, your classes interact
// only with the standard JDBC API
//
  import org.apache.commons.pool2.ObjectPool;
  import org.apache.commons.pool2.impl.GenericObjectPool;
  import org.apache.commons.dbcp2.ConnectionFactory;
  import org.apache.commons.dbcp2.PoolingDataSource;
  import org.apache.commons.dbcp2.PoolableConnectionFactory;
  import org.apache.commons.dbcp2.DriverManagerConnectionFactory;

      

        
        
        
      

    

There is nothing wrong with that, except instead of importing from

     import org.apache.commons.pool

      

        
        
        
      

    

they are imported from

     import org.apache.commons.pool2

      

        
        
        
      

    

Well, it took me a few minutes to add and read the required jar before I could figure out that they were indeed importing a different package name from what they provided at the jar.

Ok, I'm still puzzled if this is just a bug or some deliberate cryptic reason (in which case I would like to know and this is the question).

Expert commentary from apache-commons?