@Test public void requireNonNull_doesNotThrowOnNonNull() { Utils.requireNonNull("test"); }
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; }    }