How to debug cuke4duke using ant and attaching a remote debugger

Following the cuke4duke ant tutorial at http://cuke4ninja.com/sec_ant.html, it supplies the following to run the cuke4duke task:

<taskdef name="cucumber" classname="cuke4duke.ant.CucumberTask" classpathref="compile.classpath"/>
<cucumber args="--verbose开发者_如何学JAVA --require target/test-classes --color --format pretty --format junit --out target/junit-report features" objectFactory="pico">
  <classpath>
    <pathelement location="target/test-classes"/>
  </classpath>
</cucumber>

To debug, according to https://github.com/cucumber/cuke4duke/wiki/Debug-Cuke4Duke-Steps you just add the following jvm arguments:

-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=4000

However, it doesn't actually specify how to do this in ant, and because this isn't a normal java ant task, I have no idea how these arguments are supposed to be added. Does anyone else know? Thanks.

---

Similar to how findbugs works, apparently you can append the jvm arguments to the cucumber task:

<cucumber args="--verbose --require target/test-classes --color --format pretty --format junit --out target/junit-report features" objectFactory="pico" jvmargs="-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=4000">

The cucumber task will break and wait for a remote debugging connection on port 4000, allowing you to debug the code through an IDE such as Eclipse.