get method of ModuleClassLoaderLocator requires createClassLoader permission

There is missing doPriviliged block in ModuleClassLoaderLocator. Fix of WFLY-7412 for ModuleClassLoaderLocator introduces new CombinedClassLoader innner class which extends SecureClassLoader. Initialization of this class needs to createClassLoader RuntimePermission.

That means:

• All deployment which uses API which internally uses ModuleClassLoaderLocator needs createClassLoader RuntimePermission (which is new in EAP 7.1, the same deployments in EAP 7.0 does not need this permission)
  • i.e. getMappingContext(String mappingType) in org.jboss.security.plugins.mapping.JBossMappingManager works internally with ModuleClassLoaderLocator.
• setting createClassLoader RuntimePermission for deployment can be dangerous and it should probably use own permission