[Java][resttemplate] Add test for bearer auth (#17081)

* add bearer auth API to echo-api

* run generate-samples.sh

* add resttemplate echo-api sample

* add bearer auth test

* remove @Ignore

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/ApiClient.java

@@ -77,6 +77,7 @@ import java.text.DateFormat;
 
 import org.openapitools.client.auth.Authentication;
 import org.openapitools.client.auth.HttpBasicAuth;
+import org.openapitools.client.auth.HttpBearerAuth;
 
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class ApiClient extends JavaTimeFormatter {
@@ -129,6 +130,7 @@ public class ApiClient extends JavaTimeFormatter {
     // Setup authentications (key: authentication name, value: authentication).
     authentications = new HashMap<String, Authentication>();
     authentications.put("http_auth", new HttpBasicAuth());
+    authentications.put("http_bearer_auth", new HttpBearerAuth("bearer"));
     // Prevent the authentications from being modified.
     authentications = Collections.unmodifiableMap(authentications);
 
@@ -288,6 +290,21 @@ public class ApiClient extends JavaTimeFormatter {
     return tempFolderPath;
   }
 
+  /**
+   * Helper method to set access token for the first Bearer authentication.
+   * @param bearerToken Bearer token
+   * @return API client
+   */
+  public ApiClient setBearerToken(String bearerToken) {
+    for (Authentication auth : authentications.values()) {
+      if (auth instanceof HttpBearerAuth) {
+        ((HttpBearerAuth) auth).setBearerToken(bearerToken);
+        return this;
+      }
+    }
+    throw new RuntimeException("No Bearer authentication configured!");
+  }
+
 
   /**
    * Helper method to set username for the first HTTP basic authentication.

samples/client/echo_api/java/apache-httpclient/src/main/java/org/openapitools/client/api/AuthApi.java

@@ -117,4 +117,71 @@ public class AuthApi {
     );
   }
 
+  /**
+   * To test HTTP bearer authentication
+   * To test HTTP bearer authentication
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testAuthHttpBearer() throws ApiException {
+    return this.testAuthHttpBearer(Collections.emptyMap());
+  }
+
+
+  /**
+   * To test HTTP bearer authentication
+   * To test HTTP bearer authentication
+   * @param additionalHeaders additionalHeaders for this call
+   * @return String
+   * @throws ApiException if fails to make API call
+   */
+  public String testAuthHttpBearer(Map<String, String> additionalHeaders) throws ApiException {
+    Object localVarPostBody = null;
+    
+    // create path and map variables
+    String localVarPath = "/auth/http/bearer";
+
+    StringJoiner localVarQueryStringJoiner = new StringJoiner("&");
+    String localVarQueryParameterBaseName;
+    List<Pair> localVarQueryParams = new ArrayList<Pair>();
+    List<Pair> localVarCollectionQueryParams = new ArrayList<Pair>();
+    Map<String, String> localVarHeaderParams = new HashMap<String, String>();
+    Map<String, String> localVarCookieParams = new HashMap<String, String>();
+    Map<String, Object> localVarFormParams = new HashMap<String, Object>();
+
+    
+    localVarHeaderParams.putAll(additionalHeaders);
+
+    
+    
+    final String[] localVarAccepts = {
+      "text/plain"
+    };
+    final String localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+
+    final String[] localVarContentTypes = {
+      
+    };
+    final String localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+    String[] localVarAuthNames = new String[] { "http_bearer_auth" };
+
+    TypeReference<String> localVarReturnType = new TypeReference<String>() {};
+    return apiClient.invokeAPI(
+        localVarPath,
+        "POST",
+        localVarQueryParams,
+        localVarCollectionQueryParams,
+        localVarQueryStringJoiner.toString(),
+        localVarPostBody,
+        localVarHeaderParams,
+        localVarCookieParams,
+        localVarFormParams,
+        localVarAccept,
+        localVarContentType,
+        localVarAuthNames,
+        localVarReturnType
+    );
+  }
+
 }