Regression : NativeIM and JavaIM are activated at same time

REGRESSION
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Not reproducible with JDK 7 b141. Only JDK 7 b142 and later, including b147.

SYNOPSIS
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NativeIM and JavaIM are activated at same time

OPERATING SYSTEM
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Windows XP (Japanese)
Windows 7(Japanese)
Windows Server 2008 (Korean)

FULL JDK VERSION
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JDK 7 b142 and later.

DESCRIPTION from Licensee
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When I restart an application after JavaIM is activated, NativeIM and JavaIM are activated.

RECREATION INSTRUCTIONS
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Please download following jar files
http://java.sun.com/javase/6/docs/technotes/guides/imf/spi-sample/CityIM.jar
http://java.sun.com/products/jfc/tsc/articles/InputMethod/InputMethodHotKey.jar
(http://java.sun.com/products/jfc/tsc/articles/InputMethod/inputmethod.html)

Use Japanese Windows and Japanese keyboard. Put LanguageBar into TaskBar to prevent the LanguageBar from disappearing.

1. Copy CityIM.jar to jre\lib\ext direcory
2. Run InputMethodHotKey.jar to set Input Method Hot key, then set
   Shift+F4 for hot key, then close it (It's just an example, so you can
   use another key if you like)
    > java -jar InputMethodHotKey.jar
3. Run Notepad.jar which is in demo\jfc\Notepad\Notepad.jar
    > java -jar Notepad.jar
4. Move input focus to JTextArea, then press Shift+F4
5. On Popup menu, select "City Input Method" -> "Japanese"
6. Stop Notepad.jar, and rerun Notepad.jar
7. Move input focus to JTextArea, press Hankaku/Zenkaku key.
   Please check LanguageBar, MS-IME is activated

WORKAROUND
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Turn off CityIM before stopping application