Games : Prevent Bukkit server from spawning/generating new chunks

I use a bukkit server for a personal minecraft project, so I can use mods like WorldEdit, and have further configuration options than regular minecraft.

Recently, through using the MCEdit application, I preformed a "Prune" opperation on the map that I've been working on, to remove all of the excess areas on my map that I would never utilize. I essentially wanted to replace all of these areas with water, and after "Pruning" off the rest of the map, I was going to put the map back into my server and use WorldEdit to make this massive area of water.

When I put the map into my server, I was hoping that once i loaded the server up, it would only load the few select chunks that I had not deleted, but unfortunately, Bukkit spawned new chunks around the area I had saved.

Is there any way to prevent this from happening? I've tried a few mods, but none of them work because the bukkit server automatically spawns into empty chunk spaces before it loads the plugins that would prevent this from happening.