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

@@ -188,10 +188,18 @@
             sm.checkPermission(new AWTPermission(
                     "showWindowWithoutWarningBanner"));
         }
     }
 
+    private static void checkEventsProcessingPermission() {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            sm.checkPermission(new RuntimePermission(
+                    "canProcessApplicationEvents"));
+        }
+    }
+
     private Taskbar() {
         Toolkit defaultToolkit = Toolkit.getDefaultToolkit();
         if (defaultToolkit instanceof SunToolkit) {
             peer = ((SunToolkit) defaultToolkit).createTaskbarPeer(this);
         }

@@ -203,17 +211,21 @@
      * supported; use the {@link #isTaskbarSupported} method to
      * determine if the current taskbar is supported.
      * @return the Taskbar instance
      * @throws HeadlessException if {@link
      * GraphicsEnvironment#isHeadless()} returns {@code true}
+     * @throws SecurityException if a security manager exists and it
+     * denies the {@code RuntimePermission("canProcessApplicationEvents")}
+     * permission
      * @throws UnsupportedOperationException if this class is not
      * supported on the current platform
      * @see #isTaskbarSupported()
      * @see java.awt.GraphicsEnvironment#isHeadless
      */
     public static synchronized Taskbar getTaskbar(){
         if (GraphicsEnvironment.isHeadless()) throw new HeadlessException();
+        checkEventsProcessingPermission();
 
         if (!Taskbar.isTaskbarSupported()) {
             throw new UnsupportedOperationException("Taskbar API is not " +
                                                     "supported on the current platform");
         }