的javac -Xlint：覆盖不工作 [英] javac -Xlint:overrides not working

问题描述

我试图让我的Java构建的时候我有一个覆盖超类方法，而无需指定@Override注释一类失败。

I'm trying to get my java build to fail when I have a class that overrides a superclass method without specifying the @Override annotation.

构建正在通过蚂蚁做的，我已经添加了以下元素到我的＆LT;＆javac的GT; 任务：

The build is being done via ant, and I've added the following elements to my <javac> task:

<compilerarg value="-Werror"/>
<compilerarg value="-Xlint:unchecked,overrides"/>

的选中选项被跟踪，但覆盖选项被忽略。我也试过分开两个 Xlint 选项分成两个独立的＆LT; compilerarg＆GT; 元素，都无济于事。我误解这个选项做什么？

The unchecked option is being followed, but the overrides option is being ignored. I also tried separating the two Xlint options into two separate <compilerarg> elements, to no avail. Am I misunderstanding what this option does?

一注：这是JDK6 MacOSX上（10.6）。我能运行到特定OSX-错误？

One note: this is JDK6 on MacOSX (10.6). Could I be running into a OSX-specific bug?

推荐答案

我相信你误解了 Xlint：重写行为

据我了解，启用此检查将导致编译器发出警告（或者错误），当它遇到以 @覆盖注释的方法实际上并不重写超类方法。这不，但是，检查所有覆盖的方法是否正确注解。

To my knowledge, enabling this check will cause the compiler to emit warnings (or maybe errors) when it encounters a method annotated with @Override that does not actually override a superclass method. It does not, however, check that all overridden methods are annotated correctly.

编辑：只是测试它。编译器会发出当您指定 @覆盖在不重写超类方法，使用或不使用 Xlint 选项。

Just tested it. The compiler will emit an error when you specify @Override on a method that does not override a superclass method, with or without the Xlint option.

rel=\"nofollow\"> Oracle的网站没有按在

The documentation on Oracle's website doesn't even mention the Xlint:overrides option so I'm guessing it's not implemented.

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