src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTextUI.java

*** 523,533 ****
       * removing 'TAB' and 'SHIFT-TAB' from traversalKeysSet in case
       * editor is editable
       * adding 'TAB' and 'SHIFT-TAB' to traversalKeysSet in case
       * editor is non editable
       */
! 
      void updateFocusTraversalKeys() {
          /*
           * Fix for 4514331 Non-editable JTextArea and similar
           * should allow Tab to keyboard - accessibility
           */
--- 523,533 ----
       * removing 'TAB' and 'SHIFT-TAB' from traversalKeysSet in case
       * editor is editable
       * adding 'TAB' and 'SHIFT-TAB' to traversalKeysSet in case
       * editor is non editable
       */
!     @SuppressWarnings("deprecation")
      void updateFocusTraversalKeys() {
          /*
           * Fix for 4514331 Non-editable JTextArea and similar
           * should allow Tab to keyboard - accessibility
           */