We are using this library to do ‘docker pull’ from docker hub and to check whether an image with a given name already exists. We need this to work in Linux, Mac and Windows having the latest version of docker installed. But in several cases, we have hit the error mentioned in the title and that error is coming from jersey-client that is internally used by this library. We have tested using docker-java 3.1.5 and the latest 3.2.5 and on docker 19.03.5 and also the latest docker. The latest docker version varies on different platforms as mentioned below:

Linux (19.03.12) Mac (19.03.8) Windows (19.03.8)

Attached result of our tests

I am sharing a code snippet of what we are trying:

DockerClient dockerClient;  dockerClient = DockerClientBuilder.getInstance().build();  String imageName = "SOME_IMAGE_NAME"; List images = dockerClient.listImagesCmd().withImageNameFilter(imageName).exec(); if(!images.isEmpty()){ dockerClient.removeImageCmd(images.get(0).getId()); } dockerClient.pullImageCmd(imageName).exec(new PullImageResultCallback()).awaitCompletion(DOCKER_PULL_WAIT_TIME, TimeUnit.SECONDS); 

We are using Java 8.

If anyone has faced this kind of an issue before and solved it, can you please suggest how we should approach this problem?

Sharing the stacktrace:

java.lang.ClassNotFoundException: com.sun.ws.rs.ext.RuntimeDelegateImpl 2020-07-13 22:14:59,255 ERROR [docker-java-stream--1445483847]  ResultCallbackTemplate -   Error during callback java.lang.RuntimeException: java.lang.ClassNotFoundException: com.sun.ws.rs.ext.RuntimeDelegateImpl         at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:122) ~[jsr311-api-1.1.1.jar:?]         at javax.ws.rs.ext.RuntimeDelegate.getInstance(RuntimeDelegate.java:91) ~[jsr311-api-1.1.1.jar:?]         at javax.ws.rs.core.UriBuilder.newInstance(UriBuilder.java:69) ~[jsr311-api-1.1.1.jar:2.1.6]         at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:80) ~[jsr311-api-1.1.1.jar:2.1.6]         at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:99) ~[jsr311-api-1.1.1.jar:2.1.6]         at org.glassfish.jersey.client.JerseyWebTarget.<init>(JerseyWebTarget.java:48) ~[jersey-client-2.30.1.jar:?]         at org.glassfish.jersey.client.JerseyClient.target(JerseyClient.java:274) ~[jersey-client-2.30.1.jar:?]         at org.glassfish.jersey.client.JerseyClient.target(JerseyClient.java:56) ~[jersey-client-2.30.1.jar:?]         at com.github.dockerjava.jaxrs.JerseyDockerHttpClient.execute(JerseyDockerHttpClient.java:291) ~[docker-java-transport-jersey-3.2.5.jar:?]         at com.github.dockerjava.core.DefaultInvocationBuilder.execute(DefaultInvocationBuilder.java:228) ~[docker-java-core-3.2.5.jar:?]         at com.github.dockerjava.core.DefaultInvocationBuilder.lambda$executeAndStream$1(DefaultInvocationBuilder.java:269) ~[docker-java-core-3.2.5.jar:?]         at java.lang.Thread.run(Thread.java:748) [?:1.8.0_252] Caused by: java.lang.ClassNotFoundException: com.sun.ws.rs.ext.RuntimeDelegateImpl         at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1358) ~[catalina.jar:8.5.57]         at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1180) ~[catalina.jar:8.5.57]         at java.lang.Class.forName0(Native Method) ~[?:1.8.0_252]         at java.lang.Class.forName(Class.java:264) ~[?:1.8.0_252]         at javax.ws.rs.ext.FactoryFinder.newInstance(FactoryFinder.java:62) ~[jsr311-api-1.1.1.jar:?]         at javax.ws.rs.ext.FactoryFinder.find(FactoryFinder.java:155) ~[jsr311-api-1.1.1.jar:?]         at javax.ws.rs.ext.RuntimeDelegate.findDelegate(RuntimeDelegate.java:105) ~[jsr311-api-1.1.1.jar:?]         ... 11 more