I know there was a discussion about this earlier, and I'm sorry I missed the RC testing window, but I'm still having a problem with miniaccumulo in 1.5.
The issue is that in the pom.xml there are dependencies listed as provided. (commons-*, zookeeper, hadoop-client, log4j) This means that when I have a dependency on miniaccumulo, I have to also go depend on these other libraries. This fact must be learned by reading pom files or launching a miniaccumulo and reading the class not found errors in the logs.