Sample {
sample.module.SampleLoginModule required debug=true;
};
lc = new LoginContext("Sample", new MyCallbackHandler());
Subject s = lc.getSubject();
Subject.doAs(s, new PrivilegedAction(){...}); // the authenticated subject s will be associated with the current access control context.
2. Authorization: write policy file to grant principals access right to any critical resources. e.g.
grant
Principal sample.principal.SamplePrincipal "testUser" {
permission java.util.PropertyPermission "java.home", "read";
permission java.util.PropertyPermission "user.home", "read";
permission java.io.FilePermission "foo.txt", "read";
};