Fix header handling for resource create requests

examples/src/main/java/io/kubernetes/client/examples/CreatePodExample.java

@@ -0,0 +1,62 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package io.kubernetes.client.examples;
+
+import io.kubernetes.client.ApiClient;
+import io.kubernetes.client.ApiException;
+import io.kubernetes.client.Configuration;
+import io.kubernetes.client.apis.CoreV1Api;
+import io.kubernetes.client.models.V1Container;
+import io.kubernetes.client.models.V1ObjectMeta;
+import io.kubernetes.client.models.V1Pod;
+import io.kubernetes.client.models.V1PodSpec;
+import io.kubernetes.client.util.Config;
+
+import java.io.IOException;
+import java.util.Collections;
+
+/**
+ * A simple example of how to use the Java API
+ * 
+ * Easiest way to run this:
+ *   mvn exec:java -Dexec.mainClass="io.kubernetes.client.examples.CreatePodExample"
+ * 
+ * From inside $REPO_DIR/kubernetes
+ */
+public class CreatePodExample {
+    public static void main(String[] args) throws IOException, ApiException{
+        ApiClient client = Config.defaultClient();
+        Configuration.setDefaultApiClient(client);
+        String namespace = "default";
+
+        V1Pod pod = new V1Pod();
+        pod.setApiVersion("v1");
+
+        V1ObjectMeta objectMeta = new V1ObjectMeta();
+        objectMeta.setName("demo-pod-nginx");
+        objectMeta.setNamespace(namespace);
+
+        pod.setMetadata(objectMeta);
+
+        V1PodSpec podSpec = new V1PodSpec();
+        V1Container container = new V1Container();
+        container.setImage("nginx");
+        container.setName("nginx");
+
+        podSpec.setContainers(Collections.singletonList(container));
+        pod.setSpec(podSpec);
+
+        CoreV1Api api = new CoreV1Api();
+        api.createNamespacedPod(namespace, pod, "false");
+    }
+}

kubernetes/src/main/java/io/kubernetes/client/ApiClient.java

@@ -768,10 +768,10 @@ public String selectHeaderAccept(String[] accepts) {
      *
      * @param contentTypes The Content-Type array to select from
      * @return The Content-Type header to use. If the given array is empty,
-     *   JSON will be used.
+     *    or matches any, JSON will be used.
      */
     public String selectHeaderContentType(String[] contentTypes) {
-        if (contentTypes.length == 0) {
+        if (contentTypes.length == 0 || contentTypes[0].equals("*/*")) {
             return "application/json";
         }
         for (String contentType : contentTypes) {