8203263: Remove unnecessary throws clauses from serialization-related methods

Reviewed-by: prr

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

@@ -1895,8 +1895,7 @@ public class Font implements java.io.Serializable
      * @see #readObject(java.io.ObjectInputStream)
      */
     private void writeObject(java.io.ObjectOutputStream s)
-      throws java.lang.ClassNotFoundException,
-             java.io.IOException
+      throws java.io.IOException
     {
         if (values != null) {
           synchronized(values) {

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

@@ -432,8 +432,7 @@ public class MenuBar extends MenuComponent implements MenuContainer, Accessible
      * @see #readObject(java.io.ObjectInputStream)
      */
     private void writeObject(java.io.ObjectOutputStream s)
-      throws java.lang.ClassNotFoundException,
-             java.io.IOException
+      throws java.io.IOException
     {
       s.defaultWriteObject();
     }

src/java.desktop/share/classes/java/awt/font/TransformAttribute.java

@@ -100,8 +100,7 @@ public final class TransformAttribute implements Serializable {
     public static final TransformAttribute IDENTITY = new TransformAttribute(null);
 
     private void writeObject(java.io.ObjectOutputStream s)
-      throws java.lang.ClassNotFoundException,
-             java.io.IOException
+      throws java.io.IOException
     {
         // sigh -- 1.3 expects transform is never null, so we need to always write one out
         if (this.transform == null) {

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

@@ -3943,7 +3943,7 @@ public class AffineTransform implements Cloneable, java.io.Serializable {
     private static final long serialVersionUID = 1330973210523860834L;
 
     private void writeObject(java.io.ObjectOutputStream s)
-        throws java.lang.ClassNotFoundException, java.io.IOException
+        throws java.io.IOException
     {
         s.defaultWriteObject();
     }

src/java.desktop/share/classes/java/beans/beancontext/BeanContextSupport.java

@@ -998,7 +998,7 @@ public class      BeanContextSupport extends BeanContextChildSupport
      * @param oos the ObjectOutputStream
      */
 
-    private synchronized void writeObject(ObjectOutputStream oos) throws IOException, ClassNotFoundException {
+    private synchronized void writeObject(ObjectOutputStream oos) throws IOException {
         serializing = true;
 
         synchronized (BeanContext.globalHierarchyLock) {