private String toPathname(final String... pathElements) {
    if (pathElements != null) {
      final StringBuilder buffer = new StringBuilder();
      for (String pathElement : pathElements) {
        buffer.append(File.separator);
        buffer.append(pathElement);
      }
      return buffer.toString();
    }

    return null;
  }
Gets a fully-qualified path anchored at root.
<p>

@param pathElements a String array containing the elements of the path.
@return a fully-qualified pathname as a String value.
geode-core/src/test/java/org/apache/geode/internal/util/IOUtilsJUnitTest.java