Thanks for pointing out the version mismatch in maven-surefire-plugin. That's definitely a mistake and we'll get that fixed.
Even so, this is the first report we've seen of a compile failure due to this problem. Which version of Maven are you building with? Here's my Maven version info for reference:
$ mvn -version
Apache Maven 3.0.3 (r1075438; 2011-02-28 12:31:09-0500)
Maven home: /usr/share/maven
Java version: 1.6.0_29, vendor: Apple Inc.
Java home: /Library/Java/JavaVirtualMachines/1.6.0_29-b11-402.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.6.8", arch: "x86_64", family: "mac"
This issue is now resolved on the master branch. The fix will apply to the Beta4 release, and should also get merged into the 2.1 branch within the week.
See https://issues.jboss.org/browse/ERRAI-255 for details.