Java调试：找不到源 [英] Java Debugging: Source not found

问题描述

我有一个Eclipse的问题，我可以运行我的程序，但是，当我尝试启动调试器，我收到这个消息

图片有点难但是，而不是获得正常的调试窗口，而是说它正在抛出一个ClassNotFoundException，并试图破坏Launcher $ ExtClassLoader的源。

真的让我失望的是，我可以运行的代码很好，只有当我点击调试按钮我有问题。

我也试过调试命令行与JDB，我得到相同的错误。

到目前为止，我已经尝试重新安装Eclipse并下载（我认为是）正确的Java开发工具对于Mac OS X。

我不知道还有什么我可以尝试，所以任何帮助将不胜感激。如果有任何其他信息可以提供，请告诉我。

解决方案

源动态加载代码可能是合法的（例如Maven）。

我知道有三种解决方法（经过几个月的搜索）：

1. 使用调试器连接到正在运行的JVM，您将看到代码。




2. 从此处使用Eclipse的动态源代码查找插件：

   
   
   

   https：// github。 com / ifedorenko / com.ifedorenko.m2e.sourcelookup




3. 使用run-jetty-run Maven插件

   
   
   

   http://code.google.com/p/run- jetty-run /

我喜欢和推荐3.它工作和启动webapp比码头快得多：运行。

不幸2.没有帮助我，因为它有问题Windows空间的路径。

我已经在Eclipse Bugzilla上填写了一个增强请求，如果你同意这个问题Source not found应该永远消失，请在此投票：

https：// bugs.eclipse.org/bugs/show_bug.cgi?id=384065

I am having a problem with Eclipse where I can run my program just fine, but when I try to start the debugger, I get this message

The picture is a little hard to make out, but instead of getting the normal debugging window, instead it says it is throwing a ClassNotFoundException, and is trying to dislay the source for Launcher$ExtClassLoader.

The thing that really baffles me though is that I can run the code just fine, it is only when I click the debug button that I have the problem.

I have also tried debugging at the command line with JDB, and I got the same error.

So far, I have tried Reinstalling Eclipse and downloading (what I believe to be) the correct Java Development tools for Mac OS X.

I have no idea what else I can try, so any help would be greatly appreciated. Let me know if there is any other information I can provide.

解决方案

Source not found might be legitimate for dynamically loaded code (e.g. Maven).

There are three workarounds known to me (after months of search):

1. Connect to a running JVM with the debugger and you will see the code.

2. Use Dynamic Source Lookup plugin for Eclipse from here:

   https://github.com/ifedorenko/com.ifedorenko.m2e.sourcelookup

3. Use run-jetty-run Maven plugin

   http://code.google.com/p/run-jetty-run/

I prefer and recommend 3. It works and starts webapp much faster than jetty:run.

Unfortunately 2. didn't helped me as it has issues with Windows paths with spaces.

I have filled an enhancement request on Eclipse Bugzilla and if you agree this issue "Source not found" should vanish forever, please vote for it here:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=384065

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