What you can do with MethodHandles is curry methods, change the types of parameters and change their order. Method Handles can handle both methods and fields. Another trick which MethodHandles do is use primitive direct (rather than via wrappers) MethodHandles can be faster than using reflection as there is more direct support in the JVM … Read more
The “old” way output a bunch of StringBuilder-oriented operations. Consider this program: public class Example { public static void main(String[] args) { String result = args[0] + “-” + args[1] + “-” + args[2]; System.out.println(result); } } If we compile that with JDK 8 or earlier and then use javap -c Example to see the … Read more
It is a new JVM instruction which allows a compiler to generate code which calls methods with a looser specification than was previously possible — if you know what “duck typing” is, invokedynamic basically allows for duck typing. There’s not too much you as a Java programmer can do with it; if you’re a tool … Read more