Controlling Access to an Object
This example demonstrates how to protect access to an object
using a permission. Only threads with the required permission can
access the object.
// Create the object that requires protection
String secretObj = "my secret";
// Create the required permission that will protect the object
Guard guard = new PropertyPermission("java.home", "read");
// Create the guard
GuardedObject gobj = new GuardedObject(secretObj, guard);
// Get the guarded object
try {
Object o = gobj.getObject();
} catch (AccessControlException e) {
// Cannot access the object
}
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