当finall块中包含return语句时，Eclipse会给出警告“finally block does not complete normally”，原因分析如下：
1、不管try块、catch块中是否有return语句，finally块都会执行。
2、finally块中的return语句会覆盖前面的return语句（try块、catch块中的return语句），所以如果finally块中有return语句，Eclipse编译器会报警告“finally block does not complete normally”。
3、如果finally块中包含了return语句，即使前面的catch块重新抛出了异常，则调用该方法的语句也不会获得catch块重新抛出的异常，而是会得到finally块的返回值，并且不会捕获异常。
结论，应避免在finally块中包含return语句。如果你在前面的语句中包含了return语句或重新抛出了异常，又在finally块中包含了return语句，说明你概念混淆，没有理解finally块的意义。
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