Regression: incorrect Java IMF/SPI behavior from mustang b28

After switching from native to Java IM, input method doesn't accept inputs. Reproducible on Solaris platforms.

testcase:
/java/j2se-sqe/i18n/workspaces/i18n_mustang_ws/i18n/bundles/b01/IMF-b01.zip

to reproduce:
Obtain and expand above test case. It's actually a tar file.
Go to i18n/src/IMF directory.
perl runit.pl -TEST SPIQL -TOOLROOT . -JAVAHOME $JAVA_HOME -LOCALE ja 401.
Follow the test instruction, you'll see that you won't be able to input any characters correctly with Wubi input method. It works fine on Motif mode.

This testcase works well on Mustang b27.

###@###.### 2005-03-28 01:56:36 GMT
###@###.### 2005-03-29 18:20:35 GMT