src/java.desktop/share/classes/javax/swing/JComponent.java

*** 3555,3565 ****
  
      static final sun.awt.RequestFocusController focusController =
          new sun.awt.RequestFocusController() {
              public boolean acceptRequestFocus(Component from, Component to,
                                                boolean temporary, boolean focusedWindowChangeAllowed,
!                                               sun.awt.CausedFocusEvent.Cause cause)
              {
                  if ((to == null) || !(to instanceof JComponent)) {
                      return true;
                  }
  
--- 3555,3565 ----
  
      static final sun.awt.RequestFocusController focusController =
          new sun.awt.RequestFocusController() {
              public boolean acceptRequestFocus(Component from, Component to,
                                                boolean temporary, boolean focusedWindowChangeAllowed,
!                                               FocusEvent.Cause cause)
              {
                  if ((to == null) || !(to instanceof JComponent)) {
                      return true;
                  }