src/main/java/com/zandero/utils/Assert.java
public static <T> void isNull(T test, String message) {

		isTrue(test == null, message);
	}
public static <T> void isNull(T test, String message) {

		isTrue(test == null, message);
	}
Tests if object is null

@param test    must be null
@param message to return in exception
@param <T>     object type
@throws IllegalArgumentException if object != null