Thrown to indicate that an assertion chain does not end with an assertion (in other words the state of the assertion group is strikt.api.Status.Pending). This usually means that either:

1. a mapping function was called but not ultimate followed by an assertion, or
2. a block is empty.

Thrown to indicate that a mapping function such as strikt.api.Assertion.Builder.get or strikt.api.Assertion.Builder.with failed due to an exception thrown by the mapping function.