WM Client Fails -"Missing required Permissions manifest"

Starting the Wireless Manager client when running Java 7 update 51 results in an error - "Missing required Permissions manifest attribute in main.jar"
This appears to be related to a change made in this Java update.

http://www.java.com/en/download/help/java_blocked.xml

The workaround solves the issue for me, however I would like to see Cambium release a WM update that fixes this issue in the correct manner.