code: public static Filter<ArchivePath> include(String regexp) {
          return getFilterInstance(IMPL_CLASS_NAME_INCLUDE_REGEXP_PATHS, new Class<?>[] { String.class },
              new Object[] { regexp });
      }
docs: {@link Filer} that include all {@link ArchivePath}s that match the given Regular Expression {@link Pattern}.
  
  @param regexp
  The expression to include
  @return A Regular Expression based include {@link Filter}