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

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      /**
       * Sets the <code>NavigationFilter</code>. <code>NavigationFilter</code>
       * is used by <code>DefaultCaret</code> and the default cursor movement
       * actions as a way to restrict the cursor movement.
+      * @param filter the filter
       *
       * @since 1.4
       */
      public void setNavigationFilter(NavigationFilter filter) {
          navigationFilter = filter;