public static final void assertNotNull(Object o, String label) { if (isEnabled()) { assertTrue(o != null, "Value of " + label + " is null."); }
public static final void assertNotNull(Object o) { assertNotNull(o, "");
    public static final void assertNotNull(Object o, String label) {        if (isEnabled()) {            assertTrue(o != null, "Value of " + label + " is null.");        }    }