java - maven/visualvm : how can i use visualvm to profile a running surefire process?

Question

我可以附加到 surefire 进程，但尝试分析它显示采样:

CPU sampling:
Not available. Failed to create JMX connection to target application. Use 'Add JMX Connection' action to attach to the application.

Memory sampling:
Not available. Failed to read objects in target application. Check the logfile for details (use Help | About | Logfile).

尝试开始分析时显示一个空的错误消息框

Answer 1

正如它所说的“无法创建 JMX 连接”，在启动 maven 时启用 jmx 怎么样？这里有个问题how to activate jmx我认为您可以使用 MAVEN_OPTS 或 JAVA_OPTS 向 Maven 提供这些参数。