JClouds无法获取图像列表

I have used the code below:

我使用过以下代码：

    Iterable<Module> modules = ImmutableSet.<Module> of(
            new SshjSshClientModule());

    ContextBuilder builder = ContextBuilder.newBuilder(provider).endpoint(endpoint)
            .credentials(identity, credential)
            .modules(modules);

    System.out.printf(">> initializing %s%n", builder.getApiMetadata());

 ComputeService compute = builder.buildView(ComputeServiceContext.class).getComputeService();
    I