The usage of permissions in Desktop API should be clarified

Summary

The Desktop API uses a number of permissions which were changed a few times, but the strict list of permissions is described in the specification. Until the full list of permissions will be clarified the spec should be relaxed.

Problem

The specification is too strict.

Solution

Add a notification about permissions to the header of the class.

Specification

src/java.desktop/share/classes/java/awt/Desktop.java

+ * <p> Note: the methods in the {@code Desktop} class may require
+ * platform-dependent permissions in addition to those described in the
+ * specification.
+ *
....
public class Desktop {