I have tried to reinstall java and minecraft multiple times and minecraft still has some issues. The launcher and the servers seem to work fine, but the single player always keep crashing on me. I looked on task manager and resource center to see what the problem was. When I looked, the Java(TM) Platform SE binary has a memory leak. The memory usage always keeps increasing just standing still or moving around in the world. When the memory usage reaches around 1,500 MB - 2,000 MB, the frame rate drop from 144 fps to 10 fps - 50 fps and then minecraft does not respond. It eventually crashes and can give a message of a crash report or a java memory issue.