--- old/src/java.desktop/share/classes/java/awt/Taskbar.java	2017-03-14 14:55:17.000000000 +0300
+++ new/src/java.desktop/share/classes/java/awt/Taskbar.java	2017-03-14 14:55:17.000000000 +0300
@@ -91,7 +91,7 @@
 
         /**
          * Represents a progress state feature for a specified window.
-         * @see #setWindowProgressState(java.awt.Window, State)
+         * @see #setWindowProgressState(java.awt.Frame, State)
          */
         PROGRESS_STATE_WINDOW,
 
@@ -103,7 +103,7 @@
 
         /**
          * Represents a progress value feature for a specified window.
-         * @see #setWindowProgressValue(java.awt.Window, int)
+         * @see #setWindowProgressValue(java.awt.Frame, int)
          */
         PROGRESS_VALUE_WINDOW,
 
@@ -115,7 +115,7 @@
 
         /**
          * Represents a user attention request feature for a specified window.
-         * @see #requestWindowUserAttention(java.awt.Window)
+         * @see #requestWindowUserAttention(java.awt.Frame)
          */
         USER_ATTENTION_WINDOW
     }
@@ -123,7 +123,7 @@
     /**
      * Kinds of available window progress states.
      *
-     * @see #setWindowProgressState(java.awt.Window, java.awt.Taskbar.State)
+     * @see #setWindowProgressState(java.awt.Frame, java.awt.Taskbar.State)
      */
     public static enum State {
         /**
@@ -274,13 +274,15 @@
     /**
      * Requests user attention to the specified window.
      *
+     * Has no effect if this window is not visible in the task area.
+     *
      * @param w window
      * @throws SecurityException if a security manager exists and it denies the
      * {@code RuntimePermission("canProcessApplicationEvents")} permission.
      * @throws UnsupportedOperationException if the current platform
      * does not support the {@link Taskbar.Feature#USER_ATTENTION_WINDOW} feature
      */
-    public void requestWindowUserAttention(Window w) {
+    public void requestWindowUserAttention(Frame w) {
         checkEventsProcessingPermission();
         checkFeatureSupport(Feature.USER_ATTENTION_WINDOW);
         peer.requestWindowUserAttention(w);
@@ -375,6 +377,8 @@
      * for the specified window.
      * It may be disabled by system settings.
      *
+     * Has no effect if this window is not visible in the task area.
+     *
      * @param w window to update
      * @param badge image to affix to the icon
      * @throws SecurityException if a security manager exists and it denies the
@@ -382,7 +386,7 @@
      * @throws UnsupportedOperationException if the current platform
      * does not support the {@link Taskbar.Feature#ICON_BADGE_IMAGE_WINDOW} feature
      */
-    public void setWindowIconBadge(Window w, final Image badge) {
+    public void setWindowIconBadge(Frame w, final Image badge) {
         checkEventsProcessingPermission();
         checkFeatureSupport(Feature.ICON_BADGE_IMAGE_WINDOW);
         if (w != null) {
@@ -409,6 +413,8 @@
     /**
      * Displays a determinate progress bar in the task area for the specified
      * window.
+     *
+     * Has no effect if this window is not visible in the task area.
      * <br>
      * The visual behavior is platform and {@link State} dependent.
      * <br>
@@ -421,13 +427,13 @@
      * @param w window to update
      * @param value from 0 to 100, other to switch to {@link State#OFF} state
      *              and disable progress indication
-     * @see #setWindowProgressState(java.awt.Window, State)
+     * @see #setWindowProgressState(java.awt.Frame, State)
      * @throws SecurityException if a security manager exists and it denies the
      * {@code RuntimePermission("canProcessApplicationEvents")} permission.
      * @throws UnsupportedOperationException if the current platform
      * does not support the {@link Taskbar.Feature#PROGRESS_VALUE_WINDOW} feature
      */
-    public void setWindowProgressValue(Window w, int value) {
+    public void setWindowProgressValue(Frame w, int value) {
         checkEventsProcessingPermission();
         checkFeatureSupport(Feature.PROGRESS_VALUE_WINDOW);
         if (w != null) {
@@ -437,6 +443,8 @@
 
     /**
      * Sets a progress state for a specified window.
+     *
+     * Has no effect if this window is not visible in the task area.
      * <br>
      * Each state displays a progress in a platform-dependent way.
      * <br>
@@ -451,13 +459,13 @@
      * @see State#PAUSED
      * @see State#ERROR
      * @see State#INDETERMINATE
-     * @see #setWindowProgressValue(java.awt.Window, int)
+     * @see #setWindowProgressValue(java.awt.Frame, int)
      * @throws SecurityException if a security manager exists and it denies the
      * {@code RuntimePermission("canProcessApplicationEvents")} permission.
      * @throws UnsupportedOperationException if the current platform
      * does not support the {@link Taskbar.Feature#PROGRESS_STATE_WINDOW} feature
      */
-    public void setWindowProgressState(Window w, State state) {
+    public void setWindowProgressState(Frame w, State state) {
         checkEventsProcessingPermission();
         checkFeatureSupport(Feature.PROGRESS_STATE_WINDOW);
         if (w != null) {