When a customer inputs some specific file names in FileChooserDialogue,
the application hang easily.

REPRODUCE :
  1. Goto teh FileChooserDemo folder in JDK
  2. Launch "java -jar FileChooserDemo.jar"
       You will see FileChooserDemo Dialogue.
  3. Check "Show Preview" in "Display Options" category
  4. Click "Show FileChooser" Button.
      You will see a dialogue to select a file
  5. Input "con" in File name TextField
  6. Click "open" button.

  Here, the application hangs. We can not close the dialogue
  by clicking cancel and any other action.


CONFIGURATION :
  JRE : 1.5b64(i586)
  OS : WindowsXP (SP1, Japanese)
  MPU : Pentium IV 1.4 [GHz]
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