assertNotNull("Connection MBean is not found", connections);
assertEquals("Unexpected number of connection mbeans", 1, connections.size());
final ManagedConnection mBean = connections.get(0);
assertNotNull("Connection MBean is null", mBean);
TabularData channelsData = mBean.channels();
assertNotNull("Channels data are null", channelsData);
assertEquals("Unexpected number of rows in channel table", 1, channelsData.size());
final Iterator<CompositeDataSupport> rowItr = (Iterator<CompositeDataSupport>) channelsData.values().iterator();
final CompositeDataSupport row = rowItr.next();