#fixed code
                                private void pullImage(DockerTemplate dockerTemplate)  throws IOException {

        final String imageName = dockerTemplate.getDockerTemplateBase().getImage();

        if (shouldPullImage(imageName, dockerTemplate.getPullStrategy())) {
            LOGGER.info("Pulling image '{}'. This may take awhile...", imageName);

            long startTime = System.currentTimeMillis();

            PullImageCmd imgCmd =  getClient().pullImageCmd(imageName);
            final DockerRegistryEndpoint registry = dockerTemplate.getRegistry();
            setRegistryAuthentication(imgCmd, registry);

            imgCmd.exec(new PullImageResultCallback()).awaitSuccess();
            long pullTime = System.currentTimeMillis() - startTime;
            LOGGER.info("Finished pulling image '{}', took {} ms", imageName, pullTime);
        }
    }
#vulnerable code 
                                private void pullImage(DockerTemplate dockerTemplate)  throws IOException {

        final String imageName = dockerTemplate.getDockerTemplateBase().getImage();

        if (shouldPullImage(imageName, dockerTemplate.getPullStrategy())) {
            LOGGER.info("Pulling image '{}'. This may take awhile...", imageName);

            long startTime = System.currentTimeMillis();

            PullImageCmd imgCmd =  getClient().pullImageCmd(imageName);
            final DockerRegistryEndpoint registry = dockerTemplate.getRegistry();
            if (registry == null) {
                DockerRegistryToken token = registry.getToken(null);
                AuthConfig auth = new AuthConfig()
                        .withRegistryAddress(registry.getUrl())
                        .withEmail(token.getEmail())
                        .withRegistrytoken(token.getToken());
                imgCmd.withAuthConfig(auth);
            }

            imgCmd.exec(new PullImageResultCallback()).awaitSuccess();
            long pullTime = System.currentTimeMillis() - startTime;
            LOGGER.info("Finished pulling image '{}', took {} ms", imageName, pullTime);
        }
    } 
                            #location 13 
                            #vulnerability type NULL_DEREFERENCE