### Question:
DecisionMetadataEngine extends CommonsMetadataEngine<IStratioStreamingAPI> { @Override protected void createIndex(IndexMetadata indexMetadata, Connection<IStratioStreamingAPI> connection) throws UnsupportedException, ExecutionException { throw new UnsupportedException("Create Index not supported in Decision connector"); } DecisionMetadataEngine(ConnectionHandler connectionHandler);   }### Answer:
@Test(expected = UnsupportedException.class) public void createIndexTest() throws Exception { decisionMetadataEngine.createIndex(null, (Connection) null); }