@Test public void shouldReturnTrueOnNull() { assertTrue(new IsNullPredicate().test(null)); }
@Override public boolean test(Object toTest) { return toTest == null; }
IsNullPredicate implements Predicate<Object> { @Override public boolean test(Object toTest) { return toTest == null; } }
IsNullPredicate implements Predicate<Object> { @Override public boolean test(Object toTest) { return toTest == null; }  }
IsNullPredicate implements Predicate<Object> { @Override public boolean test(Object toTest) { return toTest == null; }  @Override boolean test(Object toTest); }
IsNullPredicate implements Predicate<Object> { @Override public boolean test(Object toTest) { return toTest == null; }  @Override boolean test(Object toTest);  }