AttachNotSupportedException while running jMockit tests on IBM JRE

Question

I am getting the below exception when I try to run a simple jMockit/JUnit test using IBM JDK. Has anyone faced this issue? I tried given -Dcom.ibm.tools.attach.enable=

Answer 1

Above answer to use -javaagent is correct. If you're using maven it's a little tricky, so here is how I did it:

1. Add the maven-dependency-plugin so you can generate absolute paths to the dependencies:

  org.apache.maven.plugins
  maven-dependency-plugin
  2.5.1
  
    
      getClasspathFilenames
      
         properties
      
    
  

2. Add -javaagent to surefire plugin

  org.apache.maven.plugins
  maven-surefire-plugin
  2.13
  
    -javaagent:${com.googlecode.jmockit:jmockit:jar} -XX:-UseSplitVerifier
  

3. Also, you don't have to, but I'd recommend using a relatively newer version of jmockit. This issues was detected in 1.1 (prior to September 2012 fix by @Rogério, but adding -javaagent fixes it regardless. For reference I am using the latest version available in maven central (2.5) as of this comment:

  com.googlecode.jmockit
  jmockit
  
  1.5
  test