public boolean isValidVersion(String version) {
    return version.equals(CURRENT_VERSION) || classPaths.containsKey(version);
  }
Check to see if a version string is known to VersionManager. Versions are either
{@link #CURRENT_VERSION} or one of the versions returned by
{@link VersionManager#getVersions()}.

@param version the version to check
@return whether a version string is known to VersionManager
geode-junit/src/main/java/org/apache/geode/test/version/VersionManager.java