public void removeAndTryClose(Connection connection) {
        if (null == connection) {
            return;
        }
        boolean res = this.conns.remove(connection);
        if (res) {
            connection.decreaseRef();
        }
        if (connection.noRef()) {
            connection.close();
        }
    }
public void removeAndTryClose ( Connection connection ) { if ( null == connection ) { return ; } boolean res = this . conns . remove ( connection ) ; if ( res ) { connection . decreaseRef ( ) ; } if ( connection . noRef ( ) ) { connection . close ( ) ; } }
removeAndTryClose a connection

@param connection