如果在分配变量之前使用了变量，Eclipse将丢失警告 [英] Eclipse missing warning if variable used before assigned

问题描述

我们在旧代码中发现了一个错误，如果有警告，可以很容易地找到它，

We found a bug in old code which could be easily found if there would be a warning,

问题是内部类成员已使用但未分配或初始化.示例代码已最小化.问题是 url 始终为null.

The issue was that inner class member was used but not assigned or initialized. Sample code minimized. Problem is that url is always null.

 public class Main {
    public class Sender {
       private String url;

        public Sender() {
         }
         public void send() {
             OtherClass.send(url);
         }
      }
   }

在 intellij 中，它会警告变量永不已分配.在月食中，我没有发现这样的警告.

In intellij it warns about variable never assigned. In eclipse I didn't find such warning.

代码更加复杂，在任何级别添加警告都会减少发现类似错误的时间.

The code is more complex and adding a warning at any level will reduce time to find similar bugs.

如果在分配/初始化之前使用了变量，在eclipse中是否可以通过某种方式发出警告?

Is it possible in eclipse to warn in some way if variable is used before assigned/initialized ?

推荐答案

您可以使用SpotBugs(findbugs的后继产品)eclipse插件.右键单击项目Spotbugs->查找错误，这将找到这些类型的错误.

You can use SpotBugs(successor of findbugs) eclipse plugin. Right click on project Spotbugs->find bugs this will find these types of bugs.

我建议还安装具有良好静态分析功能的sonarlint插件.

I suggest also installing sonarlint plugin which has good static analysis capabilities.

https://marketplace.eclipse.org/content/spotbugs-eclipse-plugin

https://marketplace.eclipse.org/content/sonarlint

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