#vulnerable code 
                                @Test
    public void rtmStart() throws Exception {
        // TODO: "prefs" support
        SlackConfig config = new SlackConfig();
        config.setLibraryMaintainerMode(false);
        config.getHttpClientResponseHandlers().add(new JsonDataRecordingListener());
        Slack slack = Slack.getInstance(config);

        String channelName = "test" + System.currentTimeMillis();
        TestChannelGenerator channelGenerator = new TestChannelGenerator(testConfig, channelCreationToken);
        Conversation channel = channelGenerator.createNewPublicChannel(channelName);
        try {
            String channelId = channel.getId();

            // need to invite the bot user to the created channel before starting an RTM session
            inviteBotUser(channelId);

            Thread.sleep(3000);

            try (RTMClient rtm = slack.rtmStart(botToken)) {
                User user = rtm.getConnectedBotUser();

                assertThat(user.getId(), is(notNullValue()));
                assertThat(user.getTeamId(), is(notNullValue()));
                assertThat(user.getName(), is(notNullValue()));
                assertThat(user.getProfile(), is(notNullValue()));
                assertThat(user.getProfile().getBotId(), is(notNullValue()));

                verifyRTMClientBehavior(channelId, rtm);
            }
        } finally {
            channelGenerator.archiveChannel(channel);
        }
    } 
                            #location 32 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                @Test
    public void rtmStart() throws Exception {
        // TODO: "prefs" support
        SlackConfig config = new SlackConfig();
        config.setLibraryMaintainerMode(false);
        config.getHttpClientResponseHandlers().add(new JsonDataRecordingListener());
        Slack slack = Slack.getInstance(config);

        String channelName = "test" + System.currentTimeMillis();
        TestChannelGenerator channelGenerator = new TestChannelGenerator(testConfig, channelCreationToken);
        Conversation channel = channelGenerator.createNewPublicChannel(channelName);
        try {
            String channelId = channel.getId();

            // need to invite the bot user to the created channel before starting an RTM session
            inviteBotUser(channelId);

            Thread.sleep(3000);

            try (RTMClient rtm = slack.rtmStart(classicAppBotToken)) {
                User user = rtm.getConnectedBotUser();

                assertThat(user.getId(), is(notNullValue()));
                assertThat(user.getTeamId(), is(notNullValue()));
                assertThat(user.getName(), is(notNullValue()));
                assertThat(user.getProfile(), is(notNullValue()));
                assertThat(user.getProfile().getBotId(), is(notNullValue()));

                verifyRTMClientBehavior(channelId, rtm);
            }
        } finally {
            channelGenerator.archiveChannel(channel);
        }
    }