A clean implementation of Java's java.util.properties, aiming to avoid the pitfalls of the implementation build into the JRE.
Java's Properties is not entirely type-safe because it allows the user to insert objects of arbitrary type. This will cause errors when the user attempts to store the properties in a file.
The native implementation also assumes the output encoding is ISO-8859-1, making it difficult to use the format for localization. This can be overridden by using the store(Writer) method, but it is more useful to assume UTF-8 by default, as this allows most common characters in a single byte and will not break when it encounters an unusual character.
The standard implementation has issues parsing some very common European punctuation, notably falling over French apostrophes unless they are escaped by repeated duplication.