Dollar sing handling

I'm trying to unpack tar.gz artifact like this:

mvn org.apache.maven.plugins:maven-dependency-plugin:2.1:get -DrepoUrl=<repoUrl> -Dartifact=<groupId>:<artifactId>:<version> -Dpackaging=tar.gz

There are files inside this artifact that have dollar sign in their names.

When it comes to settings permissions, maven fails with:

[WARNING] -------------------------------
[WARNING] Standard error:
[WARNING] -------------------------------
[WARNING]
[WARNING] -------------------------------
[WARNING] Standard output:
[WARNING] -------------------------------
[WARNING] chmod: cannot access `/path/to/target/dependency/TheClass.class': No such file or directory

The real name of file in question is TheClass$1.class

I suspect that the problem may be due to lack of escaping in org.codehaus.plexus.archiver.util.ArchiveEntryUtils.chmod()