environment variables for the job (JOB_NAME, WORKSPACE, etc) should be available to the script according to the version 0.9, but I cannot see the workspace variable:

Polling for the job AP_2.5_2
Looking nodes where the poll can be run.
Looking for a candidate node to run the poll.
Looking for a polling node with the assigned project label ubuntu&&test.

Polling remotely on rbm-83
The expected script execution code is 0
Evaluating the script:
env
[jenkins] $ /bin/sh -xe /tmp/hudson4842223712068824960.sh
+ env
HOME=/var/bob-home
HUDSON_COOKIE=64bc14ec-7466-419f-8a53-23c21cd1cf11
HUDSON_HOME=/storage/tools/jenkins/.jenkins
HUDSON_SERVER_COOKIE=66cfbe25f08f4d76d41fbb169f0fe20e
JENKINS_HOME=/storage/tools/jenkins/.jenkins
JENKINS_SERVER_COOKIE=66cfbe25f08f4d76d41fbb169f0fe20e
JOBS_URL=http://rbm-13:2020/jenkins/job
JOB_NAME=AP_2.5_2
LANG=en_GB.UTF-8
LOGNAME=bob
MAIL=/var/mail/bob
NLSPATH=/usr/dt/lib/nls/msg/%L/%N.cat
NODE_LABELS=cluster coverity linux rbm-83 test ubuntu
NODE_NAME=rbm-83
PATH=/usr/kerberos/bin:/usr/local/sbin
PWD=/storage/jenkins
SHELL=/bin/bash
SHLVL=2
SSH_CLIENT=172.xx.xx.XXX XXXXX 22
SSH_CONNECTION=172.XXX.XXX.XXX YYYYY 172.XXX.XXX.XXX 22
TMPDIR=/tmp
USER=bob
XDG_SESSION_COOKIE=b81ba24ca526785bb3ed28804f0f1f97-1338544823131.856266-1065288812321
XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt
_=/usr/bin/env

The exit code is '0'.
Testing if the script execution code returns '0'.

Polling complete. Took 44 ms.
Changes found. Scheduling a build.