Changes

This is primarily a tech debt and future preparedness PR

APIException currently performs an unsafe (in compiler terms) cast of the error description to a Map<String, Object>. Functionally, this shouldn't be an issue since a ClassCastException would only come from a change in the error schema, which shouldn't happen.

However, it does cause an unchecked cast warning, which we should typically not have or suppress as needed. This change does the following:

• Updates APIException to only create a PasswordStrengthErrorParser if the error description is a map (currently it would fail with a runtime exception if not a string)
• Suppresses the unchecked exception when casting the error description to Map<String, Object>
• Adds tests to cover this change and the obtainExceptionMessage behavior in general
• Moves the compiler options to compileJava and compileTestJava
• Adds the -Xlint:unchecked compiler flag for src (not for tests)

Testing

Please describe how this can be tested by reviewers. Be specific about anything not tested and reasons why. If this library has unit and/or integration testing, tests should be added for new functionality and existing tests should complete without errors.

• This change adds test coverage
• This change has been tested on the latest version of the platform/language or why not

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All existing and new tests complete without errors