Tested 5u13 b01 and 6u4 b02 on RedHat 5, not able to input using java written Wubi IM. Native input method is not deactivated and interferencing with users input.
locale: ja
test program: demo/jfc/Notepad
steps: Please refer to what described in CR5049524.

In RedHat 4, above problem was not observed.
Correction for above description:
The problem is only observed with 5u13. Not reproducible with 6u4.