@Test(expected = NullPointerException.class) public void requireNonNull_throwsOnNull() { Utils.requireNonNull(null); }
static <T> T requireNonNull(T obj) { if (obj == null) throw new NullPointerException(); return obj; }
Utils { static <T> T requireNonNull(T obj) { if (obj == null) throw new NullPointerException(); return obj; } }
Utils { static <T> T requireNonNull(T obj) { if (obj == null) throw new NullPointerException(); return obj; }  }
Utils { static <T> T requireNonNull(T obj) { if (obj == null) throw new NullPointerException(); return obj; }   }
Utils { static <T> T requireNonNull(T obj) { if (obj == null) throw new NullPointerException(); return obj; }    }