在Java Eclipse项目中查找未使用的类 [英] Find unused classes in a Java Eclipse project

问题描述

我有一个很大的Eclipse项目，其中有几个类，虽然它们在任何地方都不再使用，但从未被标记为@Deprecated。

找到所有这些？

解决方案

我也喜欢使用 - 包括Findbugs - 知道如何做到这一点）

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警告： Cid 提及在评论中：

$ b

UCDetector不能工作，只有在运行时才会知道接口实现。
$ b

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更新2017：静态代码分析在8年内发展了很多。

使用 SonarLint for Eclipse ，您可以使用最新的 SonarJava 4.6插件来分析你的代码。

它将查找死代码。

I have a large Eclipse project in which there exist several classes which, although they ceased to be used anywhere, were never marked @Deprecated.

How can I easily find all of these?

解决方案

I also like to use UCDetector:

UCDetector (Unecessary Code Detector) is a Open Source eclipse PlugIn Tool to find unecessary (dead) public java code. It also tries to make code final, protected or private.

Bonus: it can also find cyclic dependencies between classes

(also a number of other tools -- including Findbugs -- knows how do do that too)

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Caveat: Cid mentions in the comments:

UCDetector shall not work if there are interface implementations which will be known only at runtime.
It incorrectly marks the implementation classes as unused.

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Update 2017: static code analysis has evolved quite a bit in 8 years.
Using SonarLint for Eclipse, you can use the the latest SonarJava 4.6 plugin to analyze your code.
It will find dead code.

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