Whenever I install Eclipse or SpringSource Tool Suite in Ubuntu 9.10, I tend to forget about a little bug in Eclipse which, when paired with GTK+ 2.18 and later, causes certain behavioral oddities such as unresponsive buttons, missing selection options, etc.
The workaround for this is to set the
GDK_NATIVE_WINDOWS environment variable to true. This is most easily done by creating a startup script for eclipse:
export GDK_NATIVE_WINDOWS=true <eclipsedir>/eclipse
Alternatively, one can simply drop the export into