Is it possible to call a COM API from Java (specifically the HP/Mercury Quality Center OTA API)? If so, what's the best way?
Is something like JACOB appropriate?
Code fragments would be helpful for the basics :-)
jacob : yes, http://sourceforge.net/projects/jacob-project/ is an active project that will suite your purpose pretty well.
you can see multiple examples : http://jacob-project.wiki.sourceforge.net/Event+Callbacks
but if you want something that is more tested and are willing to pay money, then go for http://www.nevaobject.com/_docs/_java2com/java2com.htm.