[NO ISSUE][FUN] Fix type inference in JListAccessor - user model changes: no - storage format changes: no - interface changes: no
Details: As the list element type is available, there is no need to deserialize element types from the data. Doing so, for example, will cause the object type to be fully open type and closed fields to be recognized as open fields. This will further cause NPE in UDFs. Modified the upperCase test case to check this issue.