I usually use Eclipse 3 as my IDE, but reading all the good reviews about IDEA 4.5, I just got to give it a try. All seems OK except the hotswap feature. I got one very simple servlet that only does a out.println("Hello 1"); Changing it to "Hello 2", and clicking Run->Reload changed class takes me about 5 seconds until "Information: 1 class reloaded". With Eclipse, once I saved the file, it reloads the class almost intanstly. Why is this ? Are there special settings that can speed this up ?