8297210: Add a @sealedGraph tag to selected java.desktop classes

Reviewed-by: prr

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

@@ -38,6 +38,7 @@ import java.util.Arrays;
  *
  * @author Nicholas Talian, Vincent Hardy, Jim Graham, Jerry Evans
  * @since 1.6
+ * @sealedGraph
  */
 public abstract sealed class MultipleGradientPaint implements Paint
     permits LinearGradientPaint,

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

@@ -66,6 +66,7 @@ import sun.awt.InputMethodSupport;
  * @author      Sami Shaio
  * @author      Arthur van Hoff
  * @since       1.0
+ * @sealedGraph
  */
 public sealed class TextComponent extends Component implements Accessible
      permits TextArea,

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

@@ -36,6 +36,7 @@ import java.util.EventObject;
  * {@link java.awt.Desktop} instance of the current desktop context.
  *
  * @since 9
+ * @sealedGraph
  */
 public sealed class AppEvent extends EventObject
     permits AboutEvent,

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

@@ -37,6 +37,7 @@ import java.util.List;
  * Auxiliary event containing a list of files.
  *
  * @since 9
+ * @sealedGraph
  */
 public sealed class FilesEvent extends AppEvent
     permits OpenFilesEvent,

src/java.desktop/share/classes/java/awt/event/InputEvent.java

@@ -56,6 +56,7 @@ import sun.util.logging.PlatformLogger;
  * @see MouseMotionAdapter
  *
  * @since 1.1
+ * @sealedGraph
  */
 public abstract sealed class InputEvent extends ComponentEvent
     permits KeyEvent,

src/java.desktop/share/classes/java/awt/geom/Path2D.java

@@ -69,6 +69,7 @@ import sun.awt.geom.Curve;
  *
  * @author Jim Graham
  * @since 1.6
+ * @sealedGraph
  */
 public abstract sealed class Path2D implements Shape, Cloneable
     permits Path2D.Double,

src/java.desktop/share/classes/javax/swing/text/StyleConstants.java

@@ -44,6 +44,7 @@ import javax.swing.Icon;
  *      and SpaceBelow a paragraph."></p>
  *
  * @author  Timothy Prinzing
+ * @sealedGraph
  */
 public sealed class StyleConstants
     permits StyleConstants.CharacterConstants,