Error when executing function returning checked exception

JaninoPropertyResolver was throwing error when trying to execute
method which throws checked exception.

Change-Id: Ie3d510319d1f5f361fd045269cc9a6b61010d19b
Reviewed-on: https://pirx.atteo.com/gerrit/150
Tested-by: Mr. Jenkins
Reviewed-by: Tomek Piotrowski <tomek.piotrowski@atteo.com>
Fix documentation

Change-Id: Ieb04e20e9327b638fac90461118e5283029dcded
Tested-by: Mr. Jenkins
Reviewed-by: Tomek Piotrowski <tomek.piotrowski@atteo.com>