Fix policycreation test

This test was only performing code coverage, it should have revealed
that IllegalArgument exceptions were incorrect.

Fixed bug in savePolicy when an exception being thrown has a null
message.

Added warning and error messages for debugging in the future.

Issue-ID: POLICY-1590
Change-Id: Ie32a73adbaf944f96e411a2c612cd8293382911c
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
3 files changed