Kestrel fcs_J on Solaris and Win32 with both of HotSpot and Classic VM.

NullPointerException occurs when ToolTip is set in a JTextField
by "setJToolTipText" only with Metal L&F.
With Motif and Windows L&F(only on Win32) JToolTip works fine.

However, JToolTip in another component (such as JButton, JRadioButton, JCheckBox, JSlider and so on) works fine with Metal L&F.



To reproduce;

1. Compile and run the attached program.
2. Move mouse pointer to JTextField with Metal L&F.

Exception as below occurs;

Exception occurred during event dispatching:
java.lang.NullPointerException
        at javax.swing.InputMap.allKeys(InputMap.java:186)
        at javax.swing.InputMap.allKeys(InputMap.java:179)
        at javax.swing.JComponent.getRegisteredKeyStrokes(JComponent.java:1575)
        at javax.swing.plaf.metal.MetalToolTipUI.getAcceleratorString(MetalToolTipUI.java:100)
        at javax.swing.plaf.metal.MetalToolTipUI.getPreferredSize(MetalToolTipUI.java:87)
        at javax.swing.JComponent.getPreferredSize(JComponent.java:1044)
        at javax.swing.ToolTipManager.showTipWindow(ToolTipManager.java:231)
        at javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:544)
        at javax.swing.Timer.fireActionPerformed(Timer.java:147)
        at javax.swing.Timer$DoPostEvent.run(Timer.java:105)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:158)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:320)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:107)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:97)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:88)