How to get list of entries in properties file using Apache commons config?

Question

In my project we have a properties file which has some entries as below:

#Data key entries
datakey001
datakey321
datakey451
someotherkey

In fact its not a key value pair, but a list of keys. Using java.util.Properties I was able to get this using Properties.stringPropertyNames().

Now we are migrating to Apache Commons Configuration and I could not find any feature in this library to get all these keys as I used to get previously using java.util.Properties.

Is there any way in apache commons config by which I can get all these keys without changing the the structure of the properties file?

EDIT: I have tried using Configuration.getKeys() as below, but the output is empty.

 Configuration propertiesConfig = new PropertiesConfiguration("C:\\proj\\myprops.properties");
 Iterator<String> it = propertiesConfig.getKeys();
 while(it.hasNext()) {
     System.out.println(it.next());
 }

Answer 1

You can use the Configuration.getKeys() method for that.