Revision 8232 does not build.

This is what I tried:
[wolff@localhost:~/spring-osgi]svn up *
Revision 8232.
Revision 8232.
....

[wolff@localhost:~/spring-osgi]mvn clean install
....
[INFO] [invoker:run {execution: install}]
[INFO] No test-projects were selected for execution.
[INFO] ----------------------------------------------------------------------------
[INFO] Building Spring OSGi Annotation Support
[INFO] task-segment: [clean, install]
[INFO] ----------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] Deleting directory /Users/wolff/spring-osgi/annotation-support/annotation/target
[INFO] Deleting directory /Users/wolff/spring-osgi/annotation-support/annotation/target/classes
[INFO] Deleting directory /Users/wolff/spring-osgi/annotation-support/annotation/target/test-classes
[INFO] Deleting directory /Users/wolff/spring-osgi/annotation-support/annotation/target/site
[INFO] [resources:resources]
...
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.

Missing:
----------
1) org.springframework.osgi:spring-aop:jar:2.1-osgi-m4-SNAPSHOT

  Try downloading the file manually from the project website.

....

mvn install leads to the same behaviour.