Resources is a component that provides advanced management of message resources.

Many Java applications must support internationalization (i18n) of message strings presented as part of the user interface, or in messages written to log files. The standard Java APIs offer the java.util.ResourceBundle family of classes to support this requirement; however, these classes have the following limitations that reduce their usefulness:

• The classes assume that all messages should be presented based on a single Locale, while many applications require support for different Locales for each current application user.
• The ResourceBundle implementation classes do not implement the java.io.Serializable interface, which is required in some operational environments.

The classes in the proposed Resources package offer solutions to these two problems, and provide a framework for providing customized MessageResources implementations that can access resource strings from any desired static or dynamically updated collection.