Java permissions in Libraries

I have a program using JNA Library (managed by Maven) The program itself has all permissions (I received a filepermission error and changed the policy file. Now I can read / write at will) However, when I use JNA, I receive the following error:

Exception in thread "main" java.security.AccessControlException: access denied (java.util.PropertyPermission jna.encoding read)
    at java.security.AccessControlContext.checkPermission(AccessControlContext.java:393)
    at java.security.AccessController.checkPermission(AccessController.java:553)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
    at java.lang.SecurityManager.checkPropertyAccess(SecurityManager.java:1302)
    at java.lang.System.getProperty(System.java:669)
    at com.sun.jna.Pointer.getString(Pointer.java:682)
    at com.sun.jna.Function.invokeString(Function.java:598)
    at com.sun.jna.Function.invoke(Function.java:356)
    at com.sun.jna.Function.invoke(Function.java:276)
    at com.sun.jna.Library$Handler.invoke(Library.java:216)

My policy file is (last granted to obvioulsy does not work):

grant codeBase "file:/home/tm/workspace/-" {
  permission java.security.AllPermission;
};
grant codeBase "file:/home/tm/.m2/repository/net/java/dev/jna/jna/-" {
  permission java.util.PropertyPermission "jna.encoding","read";
};

I'm running a program in eclipse from a project in the workspace directory What permissions do I need to assign?

Solution

I have RMI security managers because it is a distributed program When I delete all calls to setsecuritymanager, the problem stops I assume system setSecurityManager(new RMISecurityManager()); Did not pick up the policy document