I tried both exploded deployment (artifact) and through Maven (tomcat:run), no difference: IDEA pretends it has reloaded the new code but it hasn't, so I lost t

I tried both exploded deployment (artifact) and through Maven (tomcat:run), no difference: IDEA pretends it has reloaded the new code but it hasn't, so I lost trust in it completely and now I just restart all the time. It's much more efficient with Eclipse.