eolivelli opened a new issue #8673:
URL: https://github.com/apache/pulsar/issues/8673
**Describe the bug**
Tests are not passing due to an error on Kubernetes client runtime, it
created to a default configuration, failing with a NullPointerException.
**To Reproduce**
- build pulsar from 2.7.0rc1 sources
- run tests in pulsar-functions-runtime
**Expected behavior**
Tests are passing
**Desktop (please complete the following information):**
- OS: Fedora
- Maven 3.6.3
- JDK 1.8 (OpenJDK)
**Additional context**
```
[ERROR]
testResources(org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeTest)
Time elapsed: 0.011 s <<< FAILURE!
java.lang.RuntimeException: java.lang.NullPointerException
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeFactory.initialize(KubernetesRuntimeFactory.java:211)
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeTest.createKubernetesRuntimeFactory(KubernetesRuntimeTest.java:217)
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeTest.createKubernetesRuntimeFactory(KubernetesRuntimeTest.java:225)
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeTest.testResources(KubernetesRuntimeTest.java:340)
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeTest.testResources(KubernetesRuntimeTest.java:324)
at
org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at
org.testng.internal.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:45)
at
org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:73)
at
org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at
io.kubernetes.client.util.ClientBuilder.kubeconfig(ClientBuilder.java:259)
at
io.kubernetes.client.util.ClientBuilder.getClientBuilder(ClientBuilder.java:108)
at
io.kubernetes.client.util.ClientBuilder.standard(ClientBuilder.java:87)
at
io.kubernetes.client.util.ClientBuilder.standard(ClientBuilder.java:79)
at io.kubernetes.client.util.Config.defaultClient(Config.java:113)
at
org.apache.pulsar.functions.runtime.kubernetes.KubernetesRuntimeFactory.setupClient(KubernetesRuntimeFactory.java:339)
at org.apache.pul
```
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