private void readVersionsFile(String fileName, BiConsumer<String, String> consumer) {
    Properties props = readPropertiesFile(fileName);
    props.forEach((k, v) -> consumer.accept(k.toString(), v.toString()));
  }
Returns a list of testable versions sorted from oldest to newest

<p>
Note: if you need to compare version strings use {@link TestVersion#compare(String, String)} or
{@link TestVersion#equals}.

@return a list of testable versions sorted from oldest to newest
geode-junit/src/main/java/org/apache/geode/test/version/VersionManager.java