import java.util.function.*;
 
class Foo
{
	private int x = 0;
 
	Foo setX(int x) {
		this.x = x;
		return this;
	}
 
	{
		Foo foo = new Foo();
 
		Consumer<Integer> setX = foo::setX;
		setX.accept(3);
 
	}
}
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