It is fixed in JEdit since version 4.4.1 (Oneric is still in 4.3.2)
http://jedit.svn.sourceforge.net/viewvc/jedit/jEdit/trunk/package-files/linux/deb/jedit.desktop?r1=12261&r2=19561&pathrev=19561
So it is possible to fix this by changing the .desktop file. In this case they added the following attribute
StartupWMClass=org-gjt-sp-jedit-jEdit
It is fixed in JEdit since version 4.4.1 (Oneric is still in 4.3.2)
http:// jedit.svn. sourceforge. net/viewvc/ jedit/jEdit/ trunk/package- files/linux/ deb/jedit. desktop? r1=12261& r2=19561& pathrev= 19561
So it is possible to fix this by changing the .desktop file. In this case they added the following attribute
StartupWMClass= org-gjt- sp-jedit- jEdit