A validation unit returns an error only for critical issues. If an
attempt is made to set the problematic policy without rectifying the
critical issue, it causes the setPolicy operation to fail.
Info
Any informative statement which is not severe enough to raise
ERROR/WARNING/NOTICE, like auto-correction recommendations on the
input content. Note that current version of the linter does not utilize
INFO.
Notice
Reserved for the issues that are not severe as ERROR/WARNING, but
need special handling. For instance, messages about skipped validation
units are issued as NOTICE.
Unspecified
Severity is unspecified.
Warning
Any issue which is severe enough but does not cause an error.
For example, suspicious constructs in the input object will not
necessarily fail setPolicy, but there is a high likelihood that they
won't behave as expected during policy evaluation in checkPolicy.
This includes the following common scenarios:
Unsatisfiable condition: Expired timestamp in date/time condition.
Ineffective condition: Condition on a <member, role> pair which is
granted unconditionally in another binding of the same policy.
