8195624: Desktop API cannot be used without permission to read "os.version"

Reviewed-by: prr

src/java.desktop/windows/classes/sun/awt/windows/WDesktopPeer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,7 +25,6 @@
 
 package sun.awt.windows;
 
-
 import java.awt.Desktop.Action;
 import java.awt.EventQueue;
 import java.awt.desktop.SystemEventListener;
@@ -38,9 +37,8 @@ import java.awt.peer.DesktopPeer;
 import java.io.File;
 import java.io.IOException;
 import java.net.URI;
-import javax.swing.event.EventListenerList;
-import sun.awt.OSInfo;
 
+import javax.swing.event.EventListenerList;
 
 /**
  * Concrete implementation of the interface {@code DesktopPeer} for
@@ -49,19 +47,15 @@ import sun.awt.OSInfo;
  * @see DesktopPeer
  */
 final class WDesktopPeer implements DesktopPeer {
-    /* Contants for the operation verbs */
+    /* Constants for the operation verbs */
     private static String ACTION_OPEN_VERB = "open";
     private static String ACTION_EDIT_VERB = "edit";
     private static String ACTION_PRINT_VERB = "print";
 
-    private static boolean isEventUserSessionSupported = false;
-
     private static native void init();
 
     WDesktopPeer() {
         init();
-        isEventUserSessionSupported = OSInfo.getWindowsVersion()
-                                        .compareTo(OSInfo.WINDOWS_VISTA) >= 0;
     }
 
     @Override
@@ -75,9 +69,8 @@ final class WDesktopPeer implements DesktopPeer {
             case MOVE_TO_TRASH:
             case APP_SUDDEN_TERMINATION:
             case APP_EVENT_SYSTEM_SLEEP:
-                return true;
             case APP_EVENT_USER_SESSION:
-                return isEventUserSessionSupported;
+                return true;
             default:
                 return false;
         }

test/jdk/java/awt/Desktop/DefaultPermissions/DefaultPermissions.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.Desktop;
+
+/**
+ * @test
+ * @bug 8195624
+ * @summary Desktop.getDesktop() should work without permissions
+ * @run main/othervm/policy=java.policy -Djava.security.manager DefaultPermissions
+ */
+public final class DefaultPermissions {
+
+    public static void main(final String[] args) {
+        if (Desktop.isDesktopSupported()) {
+            Desktop.getDesktop();
+        }
+    }
+}

test/jdk/java/awt/Desktop/DefaultPermissions/java.policy

@@ -0,0 +1 @@
+;