Did you find a solution for this problem? I'm facing the same issue with wildfly 8.2.1
Is there a reason you need the RMI security manager?
RMISecurityManager (Java Platform SE 8 ) says the class is deprecated since it uses the normal security manager functionality, and also that if your code may be running where a security manager is already present, you should guard it with a test that there is not already one.
Undestood, ok. It's a software vendor that made the product and when I trying to run inside wildfly this error araise. Thanks