Weld build failing on JDK 7

When I try to compile Weld on my JDK 7 installation, the build fails with the following output:

[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:2.
3.1:compile (default-compile) on project weld-core: Compilation failure
[ERROR]
\Java\dev\Weld\impl\src\main\java\org\jboss\weld\introspector\jlr\WeldAnnotationImpl.java:[57,58] error: name clash: <A>of(Class<A>,ClassTransformer) in WeldAnnotationImpl and <T>of(Class<T>,ClassTransformer) in WeldClassImpl have the same erasure, yet neither hides the other

The problem was also mentioned in the weld-dev mailing list, unfortunatly there was no response : http://lists.jboss.org/pipermail/weld-dev/2011-August/002956.html

My specific use-case in which I got the error was that I was trying to get the weld-osgi branch to work which is provided by Ales Justin (JBoss Weld lead) under: https://github.com/alesj/core.git