Set<String> scan(String packagePath, ClasspathMatcher matcher) throws IOExceptionPerform a scan of the indicated package path and any nested packages.
packagePath- defines the root of the search as a path, e.g., "org/apache/tapestry5/" not "org.apache.tapestry5"
matcher- passed each potential match to determine which are included in the final result
- matching paths based on the search and the matcher
IOException- if some error occurrs.