Hello,

I ran into the same warning. However I did not get the Exception.

I maneged to get rid of the warning byI following the (brief) docs here on github and reached this solution:

try(DockerClient dockerClient = openDockerClient()){
      // your  code
}

And the metod then:

    private static DockerClient openDockerClient() {
        var config = DefaultDockerClientConfig.createDefaultConfigBuilder().build();
        DockerHttpClient httpClient = new ApacheDockerHttpClient.Builder()
                .dockerHost(config.getDockerHost())
                .sslConfig(config.getSSLConfig())
                .maxConnections(100)
                .connectionTimeout(Duration.ofSeconds(30))
                .responseTimeout(Duration.ofSeconds(45))
                .build();

        return DockerClientImpl.getInstance(config, httpClient);
    }

you also need to add this dependency with the client to your pom.xml:

        <dependency>
            <groupId>com.github.docker-java</groupId>
            <artifactId>docker-java-transport-httpclient5</artifactId>
            <version>3.4.0</version>
        </dependency>

This has removed the warning, uses the Apache HttpClient 5 and most importantly, it works. So hopefully this is the intended way.

Hope it helps.

hello,I have same error

my dependency :

    <dependency>
        <groupId>com.github.docker-java</groupId>
        <artifactId>docker-java</artifactId>
        <version>3.3.0</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/com.github.docker-java/docker-java-transport-httpclient5 -->
    <dependency>
        <groupId>com.github.docker-java</groupId>
        <artifactId>docker-java-transport-httpclient5</artifactId>
        <version>3.3.0</version>
    </dependency>`

but when i use jdk version greater than 1.8，the above problem occurs。When I changed the jdk version to 1.8，This problem is solved.
Hope it helps

Hello,

I ran into the same warning. However I did not get the Exception.

I maneged to get rid of the warning byI following the (brief) docs here on github and reached this solution:

try(DockerClient dockerClient = openDockerClient()){
      // your  code
}

And the metod then:

    private static DockerClient openDockerClient() {
        var config = DefaultDockerClientConfig.createDefaultConfigBuilder().build();
        DockerHttpClient httpClient = new ApacheDockerHttpClient.Builder()
                .dockerHost(config.getDockerHost())
                .sslConfig(config.getSSLConfig())
                .maxConnections(100)
                .connectionTimeout(Duration.ofSeconds(30))
                .responseTimeout(Duration.ofSeconds(45))
                .build();

        return DockerClientImpl.getInstance(config, httpClient);
    }

you also need to add this dependency with the client to your pom.xml:

        <dependency>
            <groupId>com.github.docker-java</groupId>
            <artifactId>docker-java-transport-httpclient5</artifactId>
            <version>3.4.0</version>
        </dependency>

This has removed the warning, uses the Apache HttpClient 5 and most importantly, it works. So hopefully this is the intended way.

Hope it helps.

This solution works for me!

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