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

我有一个大型 Eclipse 项目，其中存在多个类，尽管它们已不再在任何地方使用，但从未被标记为 @Deprecated.

如何轻松找到所有这些?

解决方案

我也喜欢用 ——包括 Findbugs——也知道怎么做)

<小时>

警告:Cid 提到了 在评论中:

<块引用>

如果存在仅在运行时才知道的接口实现，UCDetector 将无法工作.
它错误地将实现类标记为未使用.

<小时>

2017 年更新:静态代码分析在 8 年里有了很大的发展.
使用SonarLint for Eclipse，您可以使用最新的SonarJava 4.6 插件来分析您的代码.
它将找到死代码.

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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