com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not responding or HotSpot VM not loaded

Question

I get AttachNotSupportedException while running jmockit tests on linux (ubuntu 64bit). Java version is 1.7.0_51. This JDK is from Oracle. Tests are run using

Answer 1

Like @bbarker, I got the same error but on JDK 1.8.0_161 using the Linux subsystem in Windows 10 ("Bash on Ubuntu on Windows"). Configuring the Surefire plugin with the JVM argument mentioned above fixed the issue for me as well:

    
        org.apache.maven.plugins
        maven-surefire-plugin
        2.21.0
        
            -XX:+StartAttachListener
        
    

Running the tests from a "normal" Windows command prompt works without the above, though.