Cannot access Project Property through command line in 2.5.1

I am using nightly build for today and I still cannot access this value, please clarify the usage e.g. the project property name is xyz and it's value should be replaced by http://128.34.23.23:53450 now I am giving this string in the groovy script as ${#Project#xyz}

and in my command prompt I am using testrunner.bat -P xyz=http://128.34.23.23:53450

But when I run my testcase using this command prompt it fails as the string in my groovy script ${#Project#xyz} does not get replaced by http://128.34.23.23:53450

Please advise