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[Dancefire <dancefire@xxxxxxxxx>]

The problem is still in 10.04 Lucid, and it can be fixed by using font
'WenQuanYi Micro Hei' instead of others.

I created a patch, which adds font 'WenQuanYi Micro Hei' and rearrange
the search sequence in 'fontconfig.properties'.

The patch also fix the problem of wrong extension for 'uming' and 'wqy-
zenhei', which should be '.ttc', not '.ttf'

One thing need to be noticed by package maintainer of 'openjdk-6-jre-
headless', this patch requires the dependency on package 'ttf-wqy-
microhei', the level should be same as 'ttf-wqy-zenhei', which is 'sug'.

** Patch added: "Patch for fixe the bug by using font 'wqy-microhei' instead"
   http://launchpadlibrarian.net/49788882/fontconfig.properties.patch

-- 
wrong metric for Chinese font in OpenJDK applications
https://bugs.launchpad.net/bugs/472845
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which is subscribed to openjdk-6 in ubuntu.

Status in “openjdk-6” package in Ubuntu: Incomplete

Bug description:
OpenJDK does not display Chinese (or CJK) characters correctly. It appears that all Han glyphs were displayed using wrong metric, and is only half to 1/3 of the actual EM width.

A screenshot is attached to illustrate the problem. To reproduce, select "OpenJDK Java 6 policy Tool" from the setting sub-menu, then select menu File\Open and navigate into a folder with Chinese name.

Notice that the Chinese folder name "中文目录" in the top file name box is only half-width, but the Chinese subfolder names in the left panel are fine.

This was also reported previously in Ubuntu Chinese forum (in Chinese), see http://forum.ubuntu.org.cn/viewtopic.php?f=8&t=221482

Creating a link in /usr/lib/jvm/java-6-openjdk/jre/lib/fonts/fallback folder does not solve the problem. Also, OpenJDK does not follow the fontconfig settings.


Update: as pointed out by Man Yuan in Comment#4, the font paths for wqy-zenhei in fontconfig.propertie sneeds to be updated as well. The font file suffix has been changed to ttc after the upgrade to 0.8.34 last year.