Java MySQL查询线程不断增加内存使用量

I have a method called QueryTest that queries a MySQL database over the network to get a table called output. From the start this method, when run, steadily keeps eating more memory until it eventually runs into an out of memory error. I have removed everything I can think of even putting the query in a loop with a 500ms time out but still no luck.I have a method called QueryTest that queries a