Java Lambdas : How it works in JVM & is it OOP? [closed]

Answer 1

• Lambda expression is compiled using invokedynamic bytecode.
• Lambda implementation is stored in the same class file as a special private method.
• Whether an object is created to invoke lambda depends on the situation. In the trivial cases lambda gets translated to a constant method handle.
• To instantiate a lambda HotSpot creates an anonymous class that implements lambda's functional interface. This class does not belong to any ClassLoader.

See more details from the specification lead of Lambda Expressions JSR.