从eclipse运行Visual VM [英] Running Visual VM from eclipse

问题描述

我试图在Eclipse开普勒中使用Visual VM调试一个java应用程序。我正在执行该类，主要方法选择Visual VM作为启动器。我已按照中给出的说明配置Visual VM http://blog.idrsolutions.com/2013/05/setting-up-visualvm-in-under-5-minutes 。我收到以下错误：

I am trying to debug a java app using Visual VM in Eclipse kepler. I am executing the class having main method selecting Visual VM as launcher. I have configured Visual VM as per the instructions given in http://blog.idrsolutions.com/2013/05/setting-up-visualvm-in-under-5-minutes. I am getting the following error:

An internal error occurred during: "Launching TestNew".
java.lang.NullPointerException

TestNew是具有main方法的类的名称我正在尝试执行。

"TestNew" is the name of the class with main method I am trying to execute.

请帮助。

推荐答案

有同样的问题...让我展开Anushree的评论：

I had the same issue... Let me expand a bit on Anushree's comment:

• 转到 窗口 ⇒ 首选项 ⇒ 运行/调试 ⇒ 启动 ⇒
JDK的bin目录

• 确保将JDK的根目录设置为 JDK Home EM> 即可。如果你离开指向你的JRE目录，你会遇到下一个错误...

• Go to Window ⇒ Preferences ⇒ Run/Debug ⇒ Launching ⇒ VisualVM Configuration
• Browse... for the VisualVM Executable in your JDK's bin-directory
• Make sure to also set the JDK's root directory under JDK Home. If you leave that pointing to your JRE directory, you'll run into the next error...

快乐的分析...

BTW：如果您在JVisualVM中显示应用程序时出现问题，请查看：
在Eclipse中运行Java程序以显示在VisualVM中

BTW: If you then have issues getting your application to show up inside jVisualVM, take a look here: Getting Java program running in Eclipse to show up in VisualVM

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