I installed the grails plugin.

Went to Manage Jenkins and setup a grails instance called grails_2.0.1

I selected Install automatically

I selected Grails 2.0.1

Saved then created a new job that calls grails test-app target

Got the following job output:

[webapp] $ grails test-app -clean --non-interactive
FATAL: command execution failed
java.io.IOException: Cannot run program "grails" (in directory "/var/lib/jenkins/jobs/liftyourgame-grails-master/workspace/webapp"): java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
at hudson.Proc$LocalProc.<init>(Proc.java:244)
at hudson.Proc$LocalProc.<init>(Proc.java:216)
at hudson.Launcher$LocalLauncher.launch(Launcher.java:707)
at hudson.Launcher$ProcStarter.start(Launcher.java:338)
at hudson.Launcher$ProcStarter.join(Launcher.java:345)
at com.g2one.hudson.grails.GrailsBuilder.perform(GrailsBuilder.java:217)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:700)
at hudson.model.Build$RunnerImpl.build(Build.java:178)
at hudson.model.Build$RunnerImpl.doRun(Build.java:139)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:470)
at hudson.model.Run.run(Run.java:1404)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:238)
Caused by: java.io.IOException: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.<init>(UNIXProcess.java:164)
at java.lang.ProcessImpl.start(ProcessImpl.java:81)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:468)
... 15 more
Build step 'Build With Grails' marked build as failure
Recording test results
An attempt to send an e-mail to empty list of recipients, ignored.
Finished: FAILURE