It's easy to create duplicates without realizing it. (I've modified the Sleak tool to find duplicates and am contributing this and other useful Sleak changes back to Eclipse.)

很容易创建副本，而且您可以都没有意识到(我曾修改了Sleak工具使之发现副本，并将此改变以及其他有用的改变添加到Eclipse中。)