Java 8 was released in March 2014 and introduced lambda expressions as its flagship feature. This article sheds light on how Java 8 lambda expressions and method references are implemented under the hood, and looks at the generated bytecode and performance implications.
It's been said that Java 8 is bringing Functional Programming to Java. In this article Ben Evans discusses what it means to be functional. By looking at the evolution of Java - particularly its type system, we can see how the new features of Java 8, especially lambda expressions, change the landscape, and provide some key benefits of the functional programming style.
In this article, Ben Evans explores some features in Java 7 which lay the groundwork for the new features in Java 8. 4
JSR-335: Project Lambda has been called the "defining" project in Java 8. InfoQ spoke to Oracle's Brian Goetz, JSR 335 spec lead about his observations on Project Lambda from the inside. 6
What is a lambda and what is the proposed syntax for adding lambdas to the Java language? This article explores both of these questions in depth. 10