Typically the licenses listed for the project are that of the project itself, and not of dependencies.
Can't read the url [http://svn.codehaus.org/mojo/tags/mojo-sandbox-parent-5/maven-springbeandoc-plugin/LICENSE.txt] : http://svn.codehaus.org/mojo/tags/mojo-sandbox-parent-5/maven-springbeandoc-plugin/LICENSE.txt