Having trouble to check if Configuration-node exists

Hi there...
I couldn't find anything about this using the search, so I hope to find some answers here
Im trying to check if a node of the Configuration file exists. (Im using bukkits "Configuration" class)
Well, this is what I tried - but it always returns null:

Code:

...
Configuration config = getMyConfig(); //(Im using a manager)
ConfigurationNode node = config.getNode("this.is.my.node");
boolean exists = ( node != null );
System.out.println("Node exists:" + exists);
...

I'm not sure if I use the getNode() method correctly here, but that might be the problem.

I don't actually need to know if a node exists, but wanna improve my Plugin a bit, and this would help me a lot.

Thanks in advance!

Edit:
I found a workaround:

Code:

public boolean nodeExists(Configuration config, String nodePath){
    String node = config.getString(nodePath);
    return ( node != null );
}

Not tested with lists though, but it works with primitive data types (int, boolean,...) and Strings as expected.