Grails interactive mode not working

[double16]

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I'm trying to use Grails interactive mode so I can run tests using the test daemon. It will be faster than running the build each time. The interactive script exits. I've tried the following:

task interactive(type: GrailsTask) {
  description = "Grails Command Line, run with --console plain --no-daemon"
  command = 'Interactive' // or 'interactive', no difference
  forwardStdIn = true
}

#./gradlew --no-daemon --console plain interactive

| Loading Grails 2.5.0
| Configuring classpath
| Running pre-compiled script

BUILD SUCCESSFUL

With or without daemon, no difference.