java.lang.invoke

Foo.java

package foo;

import static java.lang.invoke.MethodHandles.catchException;
import static java.lang.invoke.MethodHandles.publicLookup;
import static java.lang.invoke.MethodType.methodType;

public class Foo {
	public void sayHello(String name) throws RuntimeException {
		System.out.println("hello " + name);
		throw new RuntimeException("boom!");
	}

	public static void exceptionHandler(RuntimeException e, Foo foo, String name) {
		System.out.println(name + " went boom in " + foo);
		e.printStackTrace();
	}

	public static void main(String[] args) throws Throwable {
		catchException(
				publicLookup().findVirtual(Foo.class, "sayHello", methodType(void.class, String.class)),
				RuntimeException.class,
				publicLookup().findStatic(Foo.class, "exceptionHandler", methodType(void.class, RuntimeException.class, Foo.class, String.class))
			)
			.bindTo(new Foo())
			.invoke("bob");
	}
}

output

hello bob
bob went boom in foo.Foo@fc519e2
java.lang.RuntimeException: boom!
	at foo.Foo.sayHello(Foo.java:10)
	at java.lang.invoke.MethodHandleImpl$GuardWithCatch.invoke_L2(MethodHandleImpl.java:1130)
	at foo.Foo.main(Foo.java:25)