swing version: swing0.5.1
platform: Win95 and Solaris
Locale: en_US, ja, zh_TW

To reproduce:
- java imfTestClass
- type some characters into the yellow area
- find out the cursor is shown one position before the last character in a line.
i.e. If you type a string "abcd", you will find the cursor stays before
the character d
- sometime after a character is deleted, part of image of that character is still remains on the text area.
- for double byte charcaters (for example Kanji), if you move the cursor back and forth you will find out the cursor shown in the middle of a Kanji.