Shortest program to throw NullPointerException in Java

Question

I find NullPointerException to be interesting since there are no explicit pointers in Java. Here is a program that throws such an exception.

class c {
  public static void main(String[]s) {
    throw new NullPointerException();
  }
}

What is the shortest Java program that throws NullPointerException?

Answer 1

62 Bytes (17 byte statement)

-2 bytes thanks to @PeterTaylor.

class C{public static void main(String[]s){s=null;s.clone();}}

Without knowing about the throw trick, this is the first thing that occurred to me. Using the main class's type is the shortest one available, and casting null is shorter than declaring C c=null;. notify is also the shortest method on an object that doesn't throw an exception.

Answer 2

Java 8 - 56 53 bytes (11 byte snippet)

interface P{static void main(String[]a){throw null;}}

ideone

From the documentation:

Class NullPointerException

...
Thrown when an application attempts to use null in a case where an object is required. These include:
...

• Throwing null as if it were a Throwable value.