Java EE class loading standard

Question

WebSphere comes with parent last and parent first. Is this Java EE compliant? Is this supported by all application servers that are Java EE 5 compliant?

Answer 1

Good information. I was researching the same question and came to similar conclusions. One question still remains is, is it recommended to go with Parent Last option? I would think it will be since your application is more portable; you are not dependent on the Appserver libs. You achieve application isolation. I don't see people recommending one way or the other. Did you come across any such best practice recommendations ?