JDK Enhancement Proposal (JEP) 191 defines the Java Foreign Function Interface (FFI), which are interfaces that can bind native functions to Java methods and can manage blocks of native memory.

Any method you can conjure up takes an object and returns an object that fulfills the Java Function contract. How to use Java’s Function interface. For this Java Function interface example, we will ...

There are two ways to write a Background function, which differ in how the payload of the incoming event is represented. In a "raw" background function this payload is presented as a JSON-encoded Java ...

Java’s main function. Java’s main method is composed of six terms — three reserved words, the main method name, a reference type and a variable name: public – Java’s main function requires a public ...

Azure Functions Core Tools, meanwhile, supports running and debugging of Java functions. Related content. analysis Europe is caught in a cloud dilemma. By David Linthicum. Jun 13, 2025 5 mins.