/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class MethodReferenceNullPointerExceptionTest
{
	public static void main (String[] args) throws java.lang.Exception
	{
		makeRunnableUsingLambdaExpression(null);
		System.out.println("OH!!!");
		makeRunnableUsingMethodReference(null);
	}
 
	static Runnable makeRunnableUsingLambdaExpression(String s) {
		return () -> s.toLowerCase();
	}
 
	static Runnable makeRunnableUsingMethodReference(String s) {
		return s::toLowerCase;
	}
 
 
}

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