@Override
    public VersionDefinitionXml getRepositoryXml() throws Exception {
      return m_xml;
    }
Checks for UpgradeTypes for the specified Target stack versions.

@param resources                The resource Set to iterate over
@param versionToUpgradeTypesMap Contains 'Stack version' to 'Upgrade Type' Map.
@return count, 0 or number of Stack version's Upgrade Type(s) correctly compared.
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/CompatibleRepositoryVersionResourceProviderTest.java