I'm using Ubuntu 8.10 with SCIM 1.4.7.
In Java Applications the "Alt Gr" Key doesn't work, so it's impossible to write [ ] @ {} (at least with a german keyboard layout. Don't know if it effects english layouts, too.) Refering to this bug on launchpad
https://bugs.launchpad.net/ubuntu/+source/netbeans/+bug/212364
there is a link to patch the problem by editing /etc/profile with a few line and add the current location to /etc/scim/global. Look here:
http://www.amsn-project.net/forums/viewtopic.php?p=23368#23368
Hope you can fix this.
I think this is a Ubuntu specific problem introduced by 20_scim_config.dpatch
You should easily be able to reconfigure your trigger keys for something that suits you better.
IOW, I don't assume there is any real bug here.
works fine for me now in 1.4.14-6
Still affected?