User-defined interface mappings for the GraalVM

To improve programming productivity, the right tools are crucial. This starts with the choice of the programming language, which often predetermines the libraries and frameworks one can use. Polyglot runtime environments, such as GraalVM, provide mechanisms for exchanging objects and sending messages across language boundaries, which allow developers to combine different languages, libraries, and frameworks with each other. However, polyglot application developers are obligated to properly use the right interfaces for accessing their data and objects from different languages.