Give setName a @Nullable parameter.

Author: cpovirk

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

@@ -1020,7 +1020,7 @@ String constructComponentName() {
      * @see #getName
      * @since 1.1
      */
-    public void setName(String name) {
+    public void setName(@Nullable String name) {
         String oldName;
         synchronized(getObjectLock()) {
             oldName = this.name;