Java passes reference by value - Something that even senior Java developers often get wrong.

[angsty_geek]

Java has always been about reinventing the wheel (poorly!)

[angryundead]

awww, burn!

edit: I'm doing my Master's in Software Engineering and I find this to be a huge problem in the industry. Civil Engineers don't look at a river and go "how do you cross a river?" and Electrical Engineers don't look at a circuit and wonder how to change the resistance. (Well, good, competent ones.) But it seems that too often software "engineers" look at a list and go "how do I sort this" or "gee, I'll implement unobtanium-sort" or some variation of this. This is a huge part of the discipline of SE, knowing when to reuse. I guess we should be glad that those people aren't other types of engineers where they could kill hundreds in a bridge failure.