Why does Samsung design their phones to not recognize java ME apps?

I have a Samsung t659. Having developed for my old phone, I decided to see if it could run my old jar files, but it did not recognize them, nor did it recognize their jad counterparts. I looked up the problem, and it seems that most Samsungs can not install a Java ME jar from a micro SD card, and has to download the entire file from online. I have a limited data plan, and it costs a lot of money to download just one MB. Why does Samsung limit what beginning programmers can do with their phones? Is there a way to cheat their built-in blockade?