test/jdk/java/time/tck/java/time/AbstractDateTimeTest.java has some methods that check exceptions. The intention appears to iterate through multiple TemporalAccessors and check DateTimeException for each one. In reality, only the first TemporalAccessor returned by `samples()` is checked.

See `test_get_TemporalField_invalidField()` and `test_getLong_TemporalField_invalidField()`