assertThat(...).isNotNull() does not qualify null-check for collections #1219
Description
Similarly to #301 and #877,
AssertJ's isNotNull does not qualify as null-check for collections, here's a reproducer:
@Test
void assertNotNull() {
Collection<String> c = getCollection();
assertThat(c).isNotNull();
assertThat(c.size()).isEqualTo(0);
}
@Nullable Collection<String> getCollection() {
return null;
}which produces the following error for the last line of the @Test method with the latest version of NullAway (0.12.7):
java: [NullAway] dereferenced expression c is @Nullable
(see http://t.uber.com/nullaway )
AssertJ has many *Assert classes and users can write their own too. Is it possible to scan every *Assert classes and interfaces in AssertJ and check if the isNotNull method belongs to one of them or to a child of one of them?