Not sure I'm doing this right.

gene$ mvn -v
Apache Maven 2.2.1 (r801777; 2009-08-06 14:16:01-0500)
Java version: 1.6.0_22
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x" version: "10.6.6" arch: "x86_64" Family: "mac"

Checked out trunk, ran mvn install, and got successful build.

from inside STS2.5.2, roo shell, i run the following command:
osgi install --url file://path/to/spring-surf-roo-addon-1.0.0.CI-SNAPSHOT-roo-addon.zip

with the following result:
java.lang.NullPointerException