DefaultKubernetesClient construction failed

[hzp01]

"Code 1 works, but Code 2 does not. Could you please explain the reason?"

String master = "https://xxxx:6443";
String oauthToken = "xxx";
ApiClient apiClient = new ClientBuilder()
                .setAuthentication(new AccessTokenAuthentication(oauthToken))
                .setBasePath(master)
                .build();

String master = "https://xxxx:6443";
String oauthToken = "xxx";
Config configuration = new ConfigBuilder().withMasterUrl(master).withOauthToken(oauthToken).build();
DefaultKubernetesClient defaultKubernetesClient = new DefaultKubernetesClient(configuration);

Code 2 has the following error：
Exception in thread "main" java.lang.NoClassDefFoundError: io/fabric8/kubernetes/model/jackson/UnmatchedFieldTypeModule at io.fabric8.kubernetes.client.utils.KubernetesSerialization.<init>(KubernetesSerialization.java:68) at io.fabric8.kubernetes.client.utils.KubernetesSerialization.<init>(KubernetesSerialization.java:76) at io.fabric8.kubernetes.client.KubernetesClientBuilder.<init>(KubernetesClientBuilder.java:51) at io.fabric8.kubernetes.client.DefaultKubernetesClient.<init>(DefaultKubernetesClient.java:54) at io.fabric8.kubernetes.client.DefaultKubernetesClient.<init>(DefaultKubernetesClient.java:49) at io.fabric8.kubernetes.client.DefaultKubernetesClient.<init>(DefaultKubernetesClient.java:45) at com.quickfusion.dispatch.util.VolcanoUtil.main(VolcanoUtil.java:38) Caused by: java.lang.ClassNotFoundException: io.fabric8.kubernetes.model.jackson.UnmatchedFieldTypeModule at java.net.URLClassLoader.findClass(URLClassLoader.java:387) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ... 7 more

[shawkins]

You have some mixed dependency versions, see https://github.com/fabric8io/kubernetes-client/blob/main/doc/FAQ.md#ive-tried-adding-a-dependency-to-kubernetes-client-but-im-still-getting-weird-class-loading-issues-what-gives

[hzp01]

Thank you! I've identified multiple dependencies in the code, leading to conflicts. I've now made changes to address the issues。
Below are the incorrect dependencies:

        <dependency>
            <groupId>io.kubernetes</groupId>
            <artifactId>client-java</artifactId>
            <version>12.0.0</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.fabric8</groupId>
            <artifactId>kubernetes-client</artifactId>
            <version>6.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.fabric8</groupId>
            <artifactId>volcano-client</artifactId>
            <version>6.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.fabric8</groupId>
            <artifactId>kubernetes-client-bom</artifactId>
            <version>6.9.2</version>
            <scope>import</scope>
            <type>pom</type>
        </dependency>

I deleted io.kubernetes.client-java.12.0.0, and it worked。

[hzp01]

For version conflicts, I also resolved the issue by using io.kubernetes.client-java.18.0.0.

[manusa]

For version conflicts, I also resolved the issue by using io.kubernetes.client-java.18.0.0.

I'm afraid to ask, why are you using two different Kubernetes Clients?

[hzp01]

The code is undergoing migration, where the legacy business logic utilizes io.kubernetes.client-java, and the new business logic is implemented using io.fabric8.kubernetes-client.6.9.2.